#90EFE5
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89% 0.092 187.1), rgb(144, 239, 229).
Aa
Black text reads best on this color (15.66:1).
About this color
#90EFE5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 89%, its chroma 0.092 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.030 away. Black text reads best on it, at 15.66:1.
| Hue family | Teals and cyans |
| Lightness | light (89%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.66:1 |
| White text | 1.34:1 |
Values
| HEX | #90EFE5 |
| RGB | rgb(144, 239, 229) |
| HSL | hsl(174, 75%, 75%) |
| OKLCH | oklch(89% 0.092 187.1) |
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 #90EFE5 | 1.34:1 | Fails | Lc -19.1 | Dividers and decoration only |
| Black text on #90EFE5 | 15.66:1 | AAA | Lc 87.0 | Fine for body text |
| #90EFE5 text on white | 1.34:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #90EFE5 text on black | 15.66:1 | AAA | Lc -87.0 | 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
#EAF9F7
oklch(97% 0.016 187.3)
-
Step 100
100
#D1F2EE
oklch(93.6% 0.035 187.7)
-
Step 200
200 (this color)
#90EFE5
oklch(89% 0.092 187.1)
-
Step 300
300
#51D9CD
oklch(80.9% 0.118 186.9)
-
Step 400
400
#00B9AD
oklch(70.7% 0.124 186.6)
-
Step 500
500
#009E95
oklch(63% 0.11 187.7)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950
#002E2A
oklch(27.1% 0.048 185.8)
#90EFE5 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) | #E6E6E5 | 0.098 |
| Deuteranopia (no green cones) | #D5D9E6 | 0.092 |
| Tritanopia (no blue cones) | #6AF3EC | 0.029 |
| Achromatopsia (no color) | #DEDEDE | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90EFE5
#90EFE5
oklch(89% 0.092 187.1)
- #FFCBD4
#FFCBD4
oklch(89% 0.06 6.7)
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 #90EFE5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.030
- Robin Egg Blue #8AF1FE ΔE 0.033
- Pale Turquoise #AFEEEE ΔE 0.035
- Robin's Egg #6DEDFD ΔE 0.043
- Light Turquoise #7EF4CC ΔE 0.045
- Light Teal #90E4C1 ΔE 0.049
- Powder Blue #B0E0E6 ΔE 0.049
- Light Aqua #8CFFDB ΔE 0.050
Use #90EFE5 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.