#90E9FA
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88.4% 0.088 211.1), rgb(144, 233, 250).
Aa
Black text reads best on this color (15.22:1).
About this color
#90E9FA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.088 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.019 away. Black text reads best on it, at 15.22:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.22:1 |
| White text | 1.37:1 |
Values
| HEX | #90E9FA |
| RGB | rgb(144, 233, 250) |
| HSL | hsl(190, 91%, 77%) |
| OKLCH | oklch(88.4% 0.088 211.1) |
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 #90E9FA | 1.37:1 | Fails | Lc -21.0 | Dividers and decoration only |
| Black text on #90E9FA | 15.22:1 | AAA | Lc 85.3 | Fine for body text |
| #90E9FA text on white | 1.37:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #90E9FA 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
#EBF8FB
oklch(97% 0.014 213.1)
-
Step 100
100
#D2F0F6
oklch(93.5% 0.032 211.1)
-
Step 200
200 (this color)
#90E9FA
oklch(88.4% 0.088 211.1)
-
Step 300
300
#56D4EA
oklch(80.8% 0.114 211)
-
Step 400
400
#00B4CC
oklch(70.6% 0.123 211.4)
-
Step 500
500
#009BAF
oklch(63.2% 0.11 210.8)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#90E9FA 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) | #DAE3FB | 0.083 |
| Deuteranopia (no green cones) | #C9D6FA | 0.076 |
| Tritanopia (no blue cones) | #60F1EE | 0.048 |
| Achromatopsia (no color) | #DBDBDB | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90E9FA
#90E9FA
oklch(88.4% 0.088 211.1)
- #FFCAC0
#FFCAC0
oklch(88.3% 0.062 30.6)
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 #90E9FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.019
- Robin Egg Blue #8AF1FE ΔE 0.020
- Robin's Egg #6DEDFD ΔE 0.028
- Pale Turquoise #AFEEEE ΔE 0.039
- Powder Blue #B0E0E6 ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.049
- Celeste #A8DADC ΔE 0.049
- Diamond #B9F2FF ΔE 0.051
Use #90E9FA 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.