#90E4E9
Closest named color: Celeste (#A8DADC). oklch(86.7% 0.082 200.6), rgb(144, 228, 233).
Aa
Black text reads best on this color (14.45:1).
About this color
#90E4E9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.082 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.033 away. Black text reads best on it, at 14.45:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.45:1 |
| White text | 1.45:1 |
Values
| HEX | #90E4E9 |
| RGB | rgb(144, 228, 233) |
| HSL | hsl(183, 67%, 74%) |
| OKLCH | oklch(86.7% 0.082 200.6) |
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 #90E4E9 | 1.45:1 | Fails | Lc -24.4 | Dividers and decoration only |
| Black text on #90E4E9 | 14.45:1 | AAA | Lc 82.3 | Fine for body text |
| #90E4E9 text on white | 1.45:1 | Fails | Lc 21.4 | Dividers and decoration only |
| #90E4E9 text on black | 14.45:1 | AAA | Lc -81.9 | 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
#D3F0F2
oklch(93.5% 0.03 201.7)
-
Step 200
200 (this color)
#90E4E9
oklch(86.7% 0.082 200.6)
-
Step 300
300
#60D5DC
oklch(80.9% 0.105 200.7)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#90E4E9 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) | #D9DDE9 | 0.084 |
| Deuteranopia (no green cones) | #C9D1EA | 0.078 |
| Tritanopia (no blue cones) | #6AEAE5 | 0.035 |
| Achromatopsia (no color) | #D6D6D6 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90E4E9
#90E4E9
oklch(86.7% 0.082 200.6)
- #FFC1C0
#FFC1C0
oklch(86.7% 0.072 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 #90E4E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.033
- Robin's Egg Blue #98EFF9 ΔE 0.034
- Robin's Egg #6DEDFD ΔE 0.037
- Robin Egg Blue #8AF1FE ΔE 0.038
- Light Blue #ADD8E6 ΔE 0.041
- Pale Turquoise #AFEEEE ΔE 0.044
- Light Teal #90E4C1 ΔE 0.056
Use #90E4E9 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.