#31AED4
Closest named color: Turquoise Blue (#06B1C4). oklch(70.1% 0.118 223.2), rgb(49, 174, 212).
Aa
Black text reads best on this color (8.13:1).
About this color
#31AED4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.118 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.031 away. Black text reads best on it, at 8.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 8.13:1 |
| White text | 2.58:1 |
Values
| HEX | #31AED4 |
| RGB | rgb(49, 174, 212) |
| HSL | hsl(194, 65%, 51%) |
| OKLCH | oklch(70.1% 0.118 223.2) |
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 #31AED4 | 2.58:1 | Fails | Lc -55.2 | Large or bold text, headings |
| Black text on #31AED4 | 8.13:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #31AED4 text on white | 2.58:1 | Fails | Lc 50.1 | Large or bold text, headings |
| #31AED4 text on black | 8.13:1 | AAA | Lc -51.9 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEDF4
oklch(93.5% 0.021 223)
-
Step 200
200
#BDE0ED
oklch(88.6% 0.041 222.3)
-
Step 300
300
#8BCCE4
oklch(81% 0.074 223.1)
-
Step 400
400 (this color)
#31AED4
oklch(70.1% 0.118 223.2)
-
Step 500
500
#0098BD
oklch(63.1% 0.118 223.1)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B38
oklch(26.8% 0.05 223.6)
#31AED4 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) | #98AAD6 | 0.093 |
| Deuteranopia (no green cones) | #839AD4 | 0.083 |
| Tritanopia (no blue cones) | #00BABA | 0.061 |
| Achromatopsia (no color) | #A1A1A1 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31AED4
#31AED4
oklch(70.1% 0.118 223.2)
- #DB8561
#DB8561
oklch(70% 0.117 43.2)
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 #31AED4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.031
- Greyblue #77A1B5 ΔE 0.066
- Deep Sky Blue #00BFFF ΔE 0.068
- Light Sea Green #20B2AA ΔE 0.069
- Topaz #13BBAF ΔE 0.077
- Cadet Blue #5F9EA0 ΔE 0.078
- Bluegrey #85A3B2 ΔE 0.079
- Vivid Sky Blue #4CC9F0 ΔE 0.082
Use #31AED4 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.