#90E4FF
Closest named color: Robin's Egg Blue (#98EFF9). oklch(87.5% 0.09 220.4), rgb(144, 228, 255).
Aa
Black text reads best on this color (14.72:1).
About this color
#90E4FF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.090 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.035 away. Black text reads best on it, at 14.72:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 14.72:1 |
| White text | 1.42:1 |
Values
| HEX | #90E4FF |
| RGB | rgb(144, 228, 255) |
| HSL | hsl(195, 100%, 78%) |
| OKLCH | oklch(87.5% 0.09 220.4) |
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 #90E4FF | 1.42:1 | Fails | Lc -23.2 | Dividers and decoration only |
| Black text on #90E4FF | 14.72:1 | AAA | Lc 83.4 | Fine for body text |
| #90E4FF text on white | 1.42:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #90E4FF text on black | 14.72:1 | AAA | Lc -83.1 | 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
#EBF8FD
oklch(97.1% 0.015 222.7)
-
Step 100
100
#D3F0FA
oklch(93.7% 0.033 220.5)
-
Step 200
200 (this color)
#90E4FF
oklch(87.5% 0.09 220.4)
-
Step 300
300
#5DD2F4
oklch(81% 0.115 220)
-
Step 400
400
#00B2D8
oklch(70.7% 0.129 220.4)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#90E4FF 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) | #D3DFFF | 0.075 |
| Deuteranopia (no green cones) | #C2D2FF | 0.069 |
| Tritanopia (no blue cones) | #5EEDEC | 0.057 |
| Achromatopsia (no color) | #D8D8D8 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90E4FF
#90E4FF
oklch(87.5% 0.09 220.4)
- #FFC7B3
#FFC7B3
oklch(87.4% 0.07 40.5)
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 #90E4FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.035
- Robin Egg Blue #8AF1FE ΔE 0.035
- Robin's Egg #6DEDFD ΔE 0.036
- Powder Blue #B0E0E6 ΔE 0.043
- Light Blue #ADD8E6 ΔE 0.045
- Celeste #A8DADC ΔE 0.050
- Pale Turquoise #AFEEEE ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.057
Use #90E4FF 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.