#90E5E9
Closest named color: Robin's Egg Blue (#98EFF9). oklch(86.9% 0.083 199.6), rgb(144, 229, 233).
Aa
Black text reads best on this color (14.57:1).
About this color
#90E5E9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.083 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.032 away. Black text reads best on it, at 14.57:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 14.57:1 |
| White text | 1.44:1 |
Values
| HEX | #90E5E9 |
| RGB | rgb(144, 229, 233) |
| HSL | hsl(183, 67%, 74%) |
| OKLCH | oklch(86.9% 0.083 199.6) |
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 #90E5E9 | 1.44:1 | Fails | Lc -23.9 | Dividers and decoration only |
| Black text on #90E5E9 | 14.57:1 | AAA | Lc 82.7 | Fine for body text |
| #90E5E9 text on white | 1.44:1 | Fails | Lc 21.0 | Dividers and decoration only |
| #90E5E9 text on black | 14.57:1 | AAA | Lc -82.4 | 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
#EBF9F9
oklch(97.2% 0.015 196.9)
-
Step 100
100
#D3F1F2
oklch(93.7% 0.031 199.1)
-
Step 200
200 (this color)
#90E5E9
oklch(86.9% 0.083 199.6)
-
Step 300
300
#5FD5DB
oklch(80.8% 0.106 199.8)
-
Step 400
400
#00B7BD
oklch(70.8% 0.12 199)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#90E5E9 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) | #DADEE9 | 0.085 |
| Deuteranopia (no green cones) | #CAD2EA | 0.079 |
| Tritanopia (no blue cones) | #6AEBE6 | 0.034 |
| Achromatopsia (no color) | #D7D7D7 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90E5E9
#90E5E9
oklch(86.9% 0.083 199.6)
- #FFC2C1
#FFC2C1
oklch(86.9% 0.07 19.7)
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 #90E5E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.032
- Powder Blue #B0E0E6 ΔE 0.034
- Celeste #A8DADC ΔE 0.034
- Robin's Egg #6DEDFD ΔE 0.036
- Robin Egg Blue #8AF1FE ΔE 0.036
- Light Blue #ADD8E6 ΔE 0.042
- Pale Turquoise #AFEEEE ΔE 0.042
- Light Teal #90E4C1 ΔE 0.055
Use #90E5E9 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.