#31AFE0
Closest named color: Turquoise Blue (#06B1C4). oklch(70.8% 0.127 229.4), rgb(49, 175, 224).
Aa
Black text reads best on this color (8.33:1).
About this color
#31AFE0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.127 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.047 away. Black text reads best on it, at 8.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.33:1 |
| White text | 2.51:1 |
Values
| HEX | #31AFE0 |
| RGB | rgb(49, 175, 224) |
| HSL | hsl(197, 74%, 54%) |
| OKLCH | oklch(70.8% 0.127 229.4) |
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 #31AFE0 | 2.51:1 | Fails | Lc -54.0 | Large or bold text, headings |
| Black text on #31AFE0 | 8.33:1 | AAA | Lc 55.0 | Large or bold text, headings |
| #31AFE0 text on white | 2.51:1 | Fails | Lc 49.0 | Large or bold text, headings |
| #31AFE0 text on black | 8.33:1 | AAA | Lc -53.0 | 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 400.
-
Step 50
50
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DBEDF6
oklch(93.5% 0.023 229.1)
-
Step 200
200
#BCDFF1
oklch(88.4% 0.044 230.3)
-
Step 300
300
#8ACBEA
oklch(80.9% 0.079 229.5)
-
Step 400
400 (this color)
#31AFE0
oklch(70.8% 0.127 229.4)
-
Step 500
500
#0096C6
oklch(63% 0.126 229.9)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#31AFE0 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) | #96ACE2 | 0.089 |
| Deuteranopia (no green cones) | #7E9CDF | 0.075 |
| Tritanopia (no blue cones) | #00BDBF | 0.073 |
| Achromatopsia (no color) | #A3A3A3 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31AFE0
#31AFE0
oklch(70.8% 0.127 229.4)
- #E08755
#E08755
oklch(70.8% 0.127 49)
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 #31AFE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.047
- Deep Sky Blue #00BFFF ΔE 0.054
- Vivid Sky Blue #4CC9F0 ΔE 0.076
- Greyblue #77A1B5 ΔE 0.076
- Chefchaouen Blue #4895EF ΔE 0.080
- Bright Sky Blue #02CCFE ΔE 0.081
- Cornflower Blue #6495ED ΔE 0.082
- Light Sea Green #20B2AA ΔE 0.086
Use #31AFE0 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.