#90ECDF
Closest named color: Robin's Egg Blue (#98EFF9). oklch(88.2% 0.09 184.3), rgb(144, 236, 223).
Aa
Black text reads best on this color (15.24:1).
About this color
#90ECDF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 88%, its chroma 0.090 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.037 away. Black text reads best on it, at 15.24:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.24:1 |
| White text | 1.37:1 |
Values
| HEX | #90ECDF |
| RGB | rgb(144, 236, 223) |
| HSL | hsl(172, 71%, 75%) |
| OKLCH | oklch(88.2% 0.09 184.3) |
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 #90ECDF | 1.37:1 | Fails | Lc -20.9 | Dividers and decoration only |
| Black text on #90ECDF | 15.24:1 | AAA | Lc 85.4 | Fine for body text |
| #90ECDF text on white | 1.37:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #90ECDF text on black | 15.24:1 | AAA | Lc -85.3 | 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
#EBF9F7
oklch(97.1% 0.015 186.7)
-
Step 100
100
#D2F2EC
oklch(93.6% 0.034 183)
-
Step 200
200 (this color)
#90ECDF
oklch(88.2% 0.09 184.3)
-
Step 300
300
#57D9C9
oklch(80.9% 0.116 184)
-
Step 400
400
#00B9AA
oklch(70.6% 0.125 184.7)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#90ECDF 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) | #E4E3DF | 0.096 |
| Deuteranopia (no green cones) | #D4D7E0 | 0.091 |
| Tritanopia (no blue cones) | #6DF0E8 | 0.028 |
| Achromatopsia (no color) | #DCDCDC | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90ECDF
#90ECDF
oklch(88.2% 0.09 184.3)
- #FFC7D3
#FFC7D3
oklch(88.2% 0.065 4.2)
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 #90ECDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.037
- Pale Turquoise #AFEEEE ΔE 0.040
- Light Teal #90E4C1 ΔE 0.040
- Robin Egg Blue #8AF1FE ΔE 0.041
- Light Turquoise #7EF4CC ΔE 0.043
- Robin's Egg #6DEDFD ΔE 0.046
- Powder Blue #B0E0E6 ΔE 0.048
- Celeste #A8DADC ΔE 0.051
Use #90ECDF 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.