#90EDEF
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88.9% 0.089 197.4), rgb(144, 237, 239).
Aa
Black text reads best on this color (15.54:1).
About this color
#90EDEF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.089 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.017 away. Black text reads best on it, at 15.54:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.54:1 |
| White text | 1.35:1 |
Values
| HEX | #90EDEF |
| RGB | rgb(144, 237, 239) |
| HSL | hsl(181, 75%, 75%) |
| OKLCH | oklch(88.9% 0.089 197.4) |
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 #90EDEF | 1.35:1 | Fails | Lc -19.6 | Dividers and decoration only |
| Black text on #90EDEF | 15.54:1 | AAA | Lc 86.6 | Fine for body text |
| #90EDEF text on white | 1.35:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #90EDEF text on black | 15.54:1 | AAA | Lc -86.5 | 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 200.
-
Step 50
50
#EAF9F9
oklch(97.1% 0.016 196.9)
-
Step 100
100
#D2F1F2
oklch(93.6% 0.032 199)
-
Step 200
200 (this color)
#90EDEF
oklch(88.9% 0.089 197.4)
-
Step 300
300
#53D7DA
oklch(80.9% 0.114 197.3)
-
Step 400
400
#00B7BB
oklch(70.7% 0.12 197.6)
-
Step 500
500
#009DA0
oklch(63.1% 0.107 197.2)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#90EDEF 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) | #E2E5EF | 0.093 |
| Deuteranopia (no green cones) | #D1D8F0 | 0.087 |
| Tritanopia (no blue cones) | #65F3ED | 0.035 |
| Achromatopsia (no color) | #DEDEDE | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90EDEF
#90EDEF
oklch(88.9% 0.089 197.4)
- #FFCCCC
#FFCCCC
oklch(89% 0.058 18.3)
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 #90EDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.017
- Robin Egg Blue #8AF1FE ΔE 0.020
- Pale Turquoise #AFEEEE ΔE 0.031
- Robin's Egg #6DEDFD ΔE 0.032
- Powder Blue #B0E0E6 ΔE 0.042
- Celeste #A8DADC ΔE 0.051
- Diamond #B9F2FF ΔE 0.051
- Bright Cyan #41FDFE ΔE 0.057
Use #90EDEF 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.