Maroon Colors  ·  Color Library

Palettes / Colors / #256DAA

#256DAA — Blue

#256DAA is a blue color we call Blue, closest to the named color SteelBlue (#4682B4). It belongs to the blue family.

Color name

Closest CSS keyword: steelblue (#4682B4) — not an exact match. CSS steelblue gives you #4682B4, a different color; use #256DAA when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#256DAA is a cool blue color associated with trust, calm and professionalism. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #AB6426; it also sits naturally between #26ABA7 and #262AAB. In the palettes below you can see it working alongside real color combinations from our collection.

#256DAA · RGB 37, 109, 170

Download PNG swatch SVG

Color values

HEX#256DAA
RGB37, 109, 170
HSL208°, 64%, 41%
HSV208°, 78%, 67%
CMYK78%, 36%, 0%, 33%
XYZ13.49, 14.23, 40.07
Yxy14.23, 0.1990, 0.2100
CIE-Lab44.57, -0.26, -38.90
Hunter Lab37.73, -0.20, -40.10

RGB & CMYK percentages

Red 15% · Green 43% · Blue 67%

Cyan 78% · Magenta 36% · Yellow 0% · Key 33%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

Sample text in #256DAA on black
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sample text in #256DAA on white
Lorem ipsum dolor sit amet, consectetur adipiscing elit.

CSS code for #256DAA

.text { color: #256DAA; }
.background { background-color: #256DAA; }
.border { border: 3px solid #256DAA; }
.text-rgb { color: rgb(37, 109, 170); }
.text-hsl { color: hsl(208, 64%, 41%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #256DAA; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(37, 109, 170, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #256DAA; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(37, 109, 170, 0.8); }

HTML: <p style="color:#256DAA">Text here</p> · <div style="background-color:#256DAA">Div content here</div>

Shades of #256DAA

#22629B#1F5A8E#1C507D#18456D#153D60#11334F#0E283F#0A1D2E#071521#040B11

Tints of #256DAA

#2B7DC5#368AD3#4F98D8#64A5DD#7DB3E3#92C0E7#ABCEED#C0DAF1#D9E9F7#EEF5FB

Tones of #256DAA

#2F6CA2#386C99#426B8F#4C6A85#566A7B#5F6972

Color harmonies

Complementary — #AB6426:

Analogous:

Triadic:

Contrast & accessibility

Against white text5.46:1 AA
Against black text3.85:1 AA large only

Best text color on #256DAA: #FFFFFF.

Semi-transparent (opacity) text on #256DAA

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

100%
Sample heading text
Smaller body text shows the effect best.

Blended color: · Contrast against #256DAA: ·

How #256DAA looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Protanopia · #44459BDeuteranopia · #403B98Tritanopia · #29908D

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Material Indigo 500 · #3F51B5Tailwind cyan 600 · #0891B2Tailwind sky 600 · #0284C7

Palettes with a similar color

These palettes use a close neighbour of #256DAA rather than the exact color:

Hidden Lagoon
#1EAD9C · #2173A8 · #192592 · #8345DF
Hidden Meadow
#21425B · #2971A3 · #5EE1E7 · #B6F4F9
Palette F2efe7
#F2EFE7 · #9ACBD0 · #48A6A7 · #2973B2
Palette 154d71
#154D71 · #1C6EA4 · #33A1E0 · #FFF9AF
Cosmic Lagoon
#2F69A6 · #202766 · #3C296C · #8540A7
Royal Ruby Tempest
#243868 · #306CA5 · #2A5AE5 · #A1DCEF

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

#2173A8#2971A3#2973B2#1C6EA4#2F69A6#306CA5#2761AA#2D6AB3#316AAC#2A63B1#2C74B3#196BB0

Browse neighbouring colors

← #256DA9  ·  #256DAB →

Frequently asked questions

What color is #256DAA?

#256DAA is Blue, a blue color (RGB 37, 109, 170). Its closest standard named color is SteelBlue.

What is the RGB and HSL of #256DAA?

#256DAA is RGB 37, 109, 170 — HSL 208°, 64%, 41% — CMYK 78%, 36%, 0%, 33%.

What colors go with #256DAA?

Its complement is #AB6426; analogous partners are #26ABA7 and #262AAB. It also appears in 6+ palettes in our collection.

Can I use #256DAA for text?

White text on #256DAA has a contrast ratio of 5.46:1 (passes WCAG AA); black text gives 3.85:1.