#31D2CB
Closest named color: Medium Turquoise (#48D1CC). oklch(78.4% 0.126 190.4), rgb(49, 210, 203).
Aa
Black text reads best on this color (11.21:1).
About this color
#31D2CB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.126 and its hue 190°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.011 away. Black text reads best on it, at 11.21:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.21:1 |
| White text | 1.87:1 |
Values
| HEX | #31D2CB |
| RGB | rgb(49, 210, 203) |
| HSL | hsl(177, 64%, 51%) |
| OKLCH | oklch(78.4% 0.126 190.4) |
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 #31D2CB | 1.87:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #31D2CB | 11.21:1 | AAA | Lc 68.9 | Content text, not long reading |
| #31D2CB text on white | 1.87:1 | Fails | Lc 35.0 | Non-text elements, placeholder text |
| #31D2CB text on black | 11.21:1 | AAA | Lc -67.6 | Content text, not long reading |
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
#E9F9F8
oklch(97% 0.017 192.4)
-
Step 100
100
#CFF2EF
oklch(93.5% 0.037 190.2)
-
Step 200
200
#A3E9E4
oklch(88.6% 0.07 190.4)
-
Step 300
300 (this color)
#31D2CB
oklch(78.4% 0.126 190.4)
-
Step 400
400
#00B8B2
oklch(70.6% 0.122 190.6)
-
Step 500
500
#009E98
oklch(63.1% 0.109 190)
-
Step 600
600
#008580
oklch(55.7% 0.096 190.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005C58
oklch(42.8% 0.074 189.6)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#31D2CB 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) | #C5C7CB | 0.133 |
| Deuteranopia (no green cones) | #AFB6CC | 0.125 |
| Tritanopia (no blue cones) | #00D8CF | 0.017 |
| Achromatopsia (no color) | #BDBDBD | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31D2CB
#31D2CB
oklch(78.4% 0.126 190.4)
- #FE95A6
#FE95A6
oklch(78.4% 0.127 10)
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 #31D2CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.011
- Dark Turquoise #00CED1 ΔE 0.019
- Turquoise #40E0D0 ΔE 0.040
- Aqua Blue #02D8E9 ΔE 0.041
- Medium Aquamarine #66CDAA ΔE 0.047
- Seafoam Blue #78D1B6 ΔE 0.048
- Pale Teal #82CBB2 ΔE 0.057
- Emerald #06D6A0 ΔE 0.068
Use #31D2CB 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.