#55A39B
Closest named color: Dull Teal (#5F9E8F). oklch(66.3% 0.078 186.8), rgb(85, 163, 155).
Aa
Black text reads best on this color (7.09:1).
About this color
#55A39B is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.078 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.019 away. Black text reads best on it, at 7.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.09:1 |
| White text | 2.95:1 |
Values
| HEX | #55A39B |
| RGB | rgb(85, 163, 155) |
| HSL | hsl(174, 31%, 49%) |
| OKLCH | oklch(66.3% 0.078 186.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #55A39B | 2.95:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #55A39B | 7.09:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #55A39B text on white | 2.95:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #55A39B text on black | 7.09:1 | AAA | Lc -45.8 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A6C9C4
oklch(80.9% 0.038 185.9)
-
Step 400
400
#73ADA7
oklch(70.6% 0.061 187.7)
-
Step 500
500 (this color)
#55A39B
oklch(66.3% 0.078 186.8)
-
Step 600
600
#27837B
oklch(55.5% 0.085 186.6)
-
Step 700
700
#176F68
oklch(49.1% 0.079 186.8)
-
Step 800
800
#185A55
oklch(42.6% 0.065 187.7)
-
Step 900
900
#1C4A46
oklch(37.6% 0.051 187.5)
-
Step 950
950
#122C29
oklch(27.1% 0.033 185.7)
#55A39B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #9C9C9B | 0.083 |
| Deuteranopia (no green cones) | #8F929C | 0.079 |
| Tritanopia (no blue cones) | #2EA6A0 | 0.025 |
| Achromatopsia (no color) | #969696 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A39B
#55A39B
oklch(66.3% 0.078 186.8)
- #BD7F8B
#BD7F8B
oklch(66.3% 0.078 6.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #55A39B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.019
- Cadet Blue #5F9EA0 ΔE 0.020
- Grey Teal #5E9B8A ΔE 0.028
- Sea #3C9992 ΔE 0.039
- Persian Green #2A9D8F ΔE 0.041
- Light Sea Green #20B2AA ΔE 0.046
- Greeny Blue #42B395 ΔE 0.051
- Blue Green #0F9B8E ΔE 0.052
Use #55A39B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.