#90EEF8
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.4% 0.09 204.4), rgb(144, 238, 248).
Aa
Black text reads best on this color (15.77:1).
About this color
#90EEF8 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.090 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.008 away. Black text reads best on it, at 15.77:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.77:1 |
| White text | 1.33:1 |
Values
| HEX | #90EEF8 |
| RGB | rgb(144, 238, 248) |
| HSL | hsl(186, 88%, 77%) |
| OKLCH | oklch(89.4% 0.09 204.4) |
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 #90EEF8 | 1.33:1 | Fails | Lc -18.6 | Dividers and decoration only |
| Black text on #90EEF8 | 15.77:1 | AAA | Lc 87.4 | Fine for body text |
| #90EEF8 text on white | 1.33:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #90EEF8 text on black | 15.77:1 | AAA | Lc -87.5 | 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
#EAF9FA
oklch(97.1% 0.016 201.7)
-
Step 100
100
#D1F1F4
oklch(93.6% 0.034 203.5)
-
Step 200
200 (this color)
#90EEF8
oklch(89.4% 0.09 204.4)
-
Step 300
300
#4FD6E3
oklch(80.8% 0.116 204.2)
-
Step 400
400
#00B6C3
oklch(70.8% 0.121 203.9)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#90EEF8 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) | #E1E7F9 | 0.091 |
| Deuteranopia (no green cones) | #CFDAF8 | 0.082 |
| Tritanopia (no blue cones) | #60F5F1 | 0.042 |
| Achromatopsia (no color) | #DFDFDF | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90EEF8
#90EEF8
oklch(89.4% 0.09 204.4)
- #FFCFCA
#FFCFCA
oklch(89.5% 0.055 25.2)
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 #90EEF8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.008
- Robin Egg Blue #8AF1FE ΔE 0.010
- Robin's Egg #6DEDFD ΔE 0.029
- Pale Turquoise #AFEEEE ΔE 0.032
- Powder Blue #B0E0E6 ΔE 0.045
- Diamond #B9F2FF ΔE 0.046
- Pale Sky Blue #BDF6FE ΔE 0.053
- Celeste #A8DADC ΔE 0.056
Use #90EEF8 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.