#90EAF1
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88.3% 0.087 202.1), rgb(144, 234, 241).
Aa
Black text reads best on this color (15.22:1).
About this color
#90EAF1 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.087 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.018 away. Black text reads best on it, at 15.22:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.22:1 |
| White text | 1.37:1 |
Values
| HEX | #90EAF1 |
| RGB | rgb(144, 234, 241) |
| HSL | hsl(184, 78%, 75%) |
| OKLCH | oklch(88.3% 0.087 202.1) |
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 #90EAF1 | 1.37:1 | Fails | Lc -21.0 | Dividers and decoration only |
| Black text on #90EAF1 | 15.22:1 | AAA | Lc 85.3 | Fine for body text |
| #90EAF1 text on white | 1.37:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #90EAF1 text on black | 15.22:1 | AAA | Lc -85.2 | 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
#EBF9FA
oklch(97.2% 0.015 202.1)
-
Step 100
100
#D2F1F3
oklch(93.6% 0.032 201.4)
-
Step 200
200 (this color)
#90EAF1
oklch(88.3% 0.087 202.1)
-
Step 300
300
#57D6DF
oklch(80.9% 0.111 201.7)
-
Step 400
400
#00B6C1
oklch(70.7% 0.12 202.5)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#90EAF1 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) | #DEE3F2 | 0.088 |
| Deuteranopia (no green cones) | #CDD6F2 | 0.082 |
| Tritanopia (no blue cones) | #65F0EC | 0.038 |
| Achromatopsia (no color) | #DBDBDB | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90EAF1
#90EAF1
oklch(88.3% 0.087 202.1)
- #FFC9C6
#FFC9C6
oklch(88.3% 0.062 22.1)
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 #90EAF1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.018
- Robin Egg Blue #8AF1FE ΔE 0.021
- Robin's Egg #6DEDFD ΔE 0.029
- Pale Turquoise #AFEEEE ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.038
- Celeste #A8DADC ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.050
- Diamond #B9F2FF ΔE 0.053
Use #90EAF1 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.