#31A8A3
Closest named color: Light Sea Green (#20B2AA). oklch(66.7% 0.102 190.8), rgb(49, 168, 163).
Aa
Black text reads best on this color (7.26:1).
About this color
#31A8A3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.102 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.028 away. Black text reads best on it, at 7.26:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.26:1 |
| White text | 2.89:1 |
Values
| HEX | #31A8A3 |
| RGB | rgb(49, 168, 163) |
| HSL | hsl(177, 55%, 43%) |
| OKLCH | oklch(66.7% 0.102 190.8) |
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 #31A8A3 | 2.89:1 | Fails | Lc -60.2 | Content text, not long reading |
| Black text on #31A8A3 | 7.26:1 | AAA | Lc 49.2 | Large or bold text, headings |
| #31A8A3 text on white | 2.89:1 | Fails | Lc 54.8 | Large or bold text, headings |
| #31A8A3 text on black | 7.26:1 | AAA | Lc -47.0 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEC
oklch(93.6% 0.014 191.4)
-
Step 200
200
#C5DFDD
oklch(88.4% 0.028 191)
-
Step 300
300
#9CCBC8
oklch(80.8% 0.049 191.3)
-
Step 400
400
#60B1AC
oklch(70.8% 0.08 190.3)
-
Step 500
500 (this color)
#31A8A3
oklch(66.7% 0.102 190.8)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B58
oklch(42.5% 0.073 190.9)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#062D2B
oklch(27% 0.042 189.9)
#31A8A3 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) | #9E9FA3 | 0.108 |
| Deuteranopia (no green cones) | #8D92A4 | 0.102 |
| Tritanopia (no blue cones) | #00ADA6 | 0.016 |
| Achromatopsia (no color) | #989898 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31A8A3
#31A8A3
oklch(66.7% 0.102 190.8)
- #CA7985
#CA7985
oklch(66.6% 0.102 10.6)
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 #31A8A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.028
- Persian Green #2A9D8F ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.040
- Dull Teal #5F9E8F ΔE 0.041
- Sea #3C9992 ΔE 0.043
- Greeny Blue #42B395 ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.048
- Turquoise Blue #06B1C4 ΔE 0.048
Use #31A8A3 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.