#31BBC8
Closest named color: Turquoise Blue (#06B1C4). oklch(72.7% 0.113 204.5), rgb(49, 187, 200).
Aa
Black text reads best on this color (9.07:1).
About this color
#31BBC8 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.113 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.032 away. Black text reads best on it, at 9.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.07:1 |
| White text | 2.31:1 |
Values
| HEX | #31BBC8 |
| RGB | rgb(49, 187, 200) |
| HSL | hsl(185, 61%, 49%) |
| OKLCH | oklch(72.7% 0.113 204.5) |
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 #31BBC8 | 2.31:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #31BBC8 | 9.07:1 | AAA | Lc 58.7 | Large or bold text, headings |
| #31BBC8 text on white | 2.31:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #31BBC8 text on black | 9.07:1 | AAA | Lc -56.9 | 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 400.
-
Step 50
50
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DBEEF0
oklch(93.6% 0.02 204.4)
-
Step 200
200
#BCE1E5
oklch(88.4% 0.039 204.5)
-
Step 300
300
#88CED6
oklch(80.8% 0.071 205)
-
Step 400
400 (this color)
#31BBC8
oklch(72.7% 0.113 204.5)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#31BBC8 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) | #ABB3C9 | 0.112 |
| Deuteranopia (no green cones) | #97A4C8 | 0.103 |
| Tritanopia (no blue cones) | #00C3BF | 0.031 |
| Achromatopsia (no color) | #AAAAAA | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31BBC8
#31BBC8
oklch(72.7% 0.113 204.5)
- #E58A83
#E58A83
oklch(72.7% 0.112 24.9)
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 #31BBC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.032
- Topaz #13BBAF ΔE 0.040
- Light Sea Green #20B2AA ΔE 0.047
- Dark Turquoise #00CED1 ΔE 0.051
- Medium Turquoise #48D1CC ΔE 0.065
- Vivid Sky Blue #4CC9F0 ΔE 0.067
- Greeny Blue #42B395 ΔE 0.071
- Deep Sky Blue #00BFFF ΔE 0.079
Use #31BBC8 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.