#90EFFB
Closest named color: Robin Egg Blue (#8AF1FE). oklch(89.7% 0.092 206), rgb(144, 239, 251).
Aa
Black text reads best on this color (15.92:1).
About this color
#90EFFB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 90%, its chroma 0.092 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Robin Egg Blue (#8AF1FE), ΔE 0.007 away. Black text reads best on it, at 15.92:1.
| Hue family | Teals and cyans |
| Lightness | light (90%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Robin Egg Blue (#8AF1FE) |
| Black text | 15.92:1 |
| White text | 1.31:1 |
Values
| HEX | #90EFFB |
| RGB | rgb(144, 239, 251) |
| HSL | hsl(187, 93%, 77%) |
| OKLCH | oklch(89.7% 0.092 206) |
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 #90EFFB | 1.31:1 | Fails | Lc -17.9 | Dividers and decoration only |
| Black text on #90EFFB | 15.92:1 | AAA | Lc 88.0 | Fine for body text |
| #90EFFB text on white | 1.31:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #90EFFB text on black | 15.92:1 | AAA | Lc -88.1 | 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
#EAF9FB
oklch(97.2% 0.016 206.4)
-
Step 100
100
#D1F1F5
oklch(93.6% 0.034 205.8)
-
Step 200
200 (this color)
#90EFFB
oklch(89.7% 0.092 206)
-
Step 300
300
#4DD6E6
oklch(80.9% 0.118 206.2)
-
Step 400
400
#00B5C5
oklch(70.6% 0.121 206)
-
Step 500
500
#009BA9
oklch(63% 0.108 206.1)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#90EFFB 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) | #E1E8FC | 0.090 |
| Deuteranopia (no green cones) | #CFDAFB | 0.084 |
| Tritanopia (no blue cones) | #5EF6F2 | 0.044 |
| Achromatopsia (no color) | #E0E0E0 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90EFFB
#90EFFB
oklch(89.7% 0.092 206)
- #FFD0CB
#FFD0CB
oklch(89.7% 0.054 25.3)
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 #90EFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin Egg Blue #8AF1FE ΔE 0.007
- Robin's Egg Blue #98EFF9 ΔE 0.008
- Robin's Egg #6DEDFD ΔE 0.029
- Pale Turquoise #AFEEEE ΔE 0.033
- Diamond #B9F2FF ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.047
- Pale Sky Blue #BDF6FE ΔE 0.052
- Bright Cyan #41FDFE ΔE 0.056
Use #90EFFB 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.