Palettes / Colors / #155B60
#155B60 — Deep Teal
#155B60 is a teal color we call Deep Teal, closest to the named color DarkSlateGray (#2F4F4F). It belongs to the teal family.
Color name
Closest CSS keyword: darkslategray (#2F4F4F) — not an exact match. CSS darkslategray gives you #2F4F4F, a different color; use #155B60 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.
#155B60 is a cool teal color associated with freshness, clarity and balance. 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 #601A15; it also sits naturally between #156040 and #153660. In the palettes below you can see it working alongside real color combinations from our collection.
Color values
| HEX | #155B60 |
|---|---|
| RGB | 21, 91, 96 |
| HSL | 184°, 64%, 23% |
| HSV | 184°, 78%, 38% |
| CMYK | 78%, 5%, 0%, 62% |
| XYZ | 6.16, 8.49, 12.38 |
| Yxy | 8.49, 0.2280, 0.3140 |
| CIE-Lab | 34.98, -18.86, -9.00 |
| Hunter Lab | 29.13, -11.85, -6.64 |
RGB & CMYK percentages
Red 8% · Green 36% · Blue 38%
Cyan 78% · Magenta 5% · Yellow 0% · Key 62%
CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.
Previews
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CSS code for #155B60
.text { color: #155B60; }
.background { background-color: #155B60; }
.border { border: 3px solid #155B60; }
.text-rgb { color: rgb(21, 91, 96); }
.text-hsl { color: hsl(184, 64%, 23%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #155B60; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(21, 91, 96, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #155B60; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(21, 91, 96, 0.8); }
HTML: <p style="color:#155B60">Text here</p> · <div style="background-color:#155B60">Div content here</div>
Shades of #155B60
Tints of #155B60
Tones of #155B60
Color harmonies
Complementary — #601A15:
Analogous:
Triadic:
Contrast & accessibility
| Against white text | 7.79:1 AAA |
|---|---|
| Against black text | 2.70:1 Fails |
Best text color on #155B60: #FFFFFF.
Semi-transparent (opacity) text on #155B60
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:
Smaller body text shows the effect best.
Blended color: · Contrast against #155B60: ·
How #155B60 looks with color blindness
Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:
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:
Palettes with a similar color
These palettes use a close neighbour of #155B60 rather than the exact color:
Similar colors
The closest colors that actually appear in our palette collection — click any to open its page:
Browse neighbouring colors
Frequently asked questions
What color is #155B60?
#155B60 is Deep Teal, a teal color (RGB 21, 91, 96). Its closest standard named color is DarkSlateGray.
What is the RGB and HSL of #155B60?
#155B60 is RGB 21, 91, 96 — HSL 184°, 64%, 23% — CMYK 78%, 5%, 0%, 62%.
What colors go with #155B60?
Its complement is #601A15; analogous partners are #156040 and #153660. It also appears in 6+ palettes in our collection.
Can I use #155B60 for text?
White text on #155B60 has a contrast ratio of 7.79:1 (passes WCAG AA); black text gives 2.70:1.