#31E4DA
Closest named color: Turquoise (#40E0D0). oklch(83.3% 0.136 189), rgb(49, 228, 218).
Aa
Black text reads best on this color (13.24:1).
About this color
#31E4DA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 83%, its chroma 0.136 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.015 away. Black text reads best on it, at 13.24:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 13.24:1 |
| White text | 1.58:1 |
Values
| HEX | #31E4DA |
| RGB | rgb(49, 228, 218) |
| HSL | hsl(177, 77%, 54%) |
| OKLCH | oklch(83.3% 0.136 189) |
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 #31E4DA | 1.58:1 | Fails | Lc -29.5 | Dividers and decoration only |
| Black text on #31E4DA | 13.24:1 | AAA | Lc 77.7 | Fine for body text |
| #31E4DA text on white | 1.58:1 | Fails | Lc 26.1 | Dividers and decoration only |
| #31E4DA text on black | 13.24:1 | AAA | Lc -77.0 | Fine for body text |
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 300.
-
Step 50
50
#E9FAF8
oklch(97.2% 0.018 188.4)
-
Step 100
100
#CDF3EF
oklch(93.6% 0.04 188.7)
-
Step 200
200
#9EEAE3
oklch(88.6% 0.076 188.6)
-
Step 300
300 (this color)
#31E4DA
oklch(83.3% 0.136 189)
-
Step 400
400
#00B8B0
oklch(70.6% 0.122 189.3)
-
Step 500
500
#009E97
oklch(63.1% 0.109 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002E2B
oklch(27.1% 0.047 188)
#31E4DA 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) | #D7D7DA | 0.145 |
| Deuteranopia (no green cones) | #BFC6DC | 0.136 |
| Tritanopia (no blue cones) | #00EAE1 | 0.016 |
| Achromatopsia (no color) | #CDCDCD | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31E4DA
#31E4DA
oklch(83.3% 0.136 189)
- #FFAEBB
#FFAEBB
oklch(83.2% 0.096 8.8)
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 #31E4DA, closest first.
No curated palette has a color within ΔE 0.04 of #31E4DA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.015
- Aqua Blue #02D8E9 ΔE 0.047
- Aqua Marine #2EE8BB ΔE 0.049
- Medium Turquoise #48D1CC ΔE 0.050
- Bright Aqua #0BF9EA ΔE 0.055
- Bright Light Blue #26F7FD ΔE 0.061
- Dark Turquoise #00CED1 ΔE 0.063
- Seafoam Blue #78D1B6 ΔE 0.064
Use #31E4DA 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.