#90D9DA
Closest named color: Celeste (#A8DADC). oklch(83.8% 0.073 197), rgb(144, 217, 218).
Aa
Black text reads best on this color (13.12:1).
About this color
#90D9DA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.073 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.027 away. Black text reads best on it, at 13.12:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.12:1 |
| White text | 1.60:1 |
Values
| HEX | #90D9DA |
| RGB | rgb(144, 217, 218) |
| HSL | hsl(181, 50%, 71%) |
| OKLCH | oklch(83.8% 0.073 197) |
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 #90D9DA | 1.60:1 | Fails | Lc -30.5 | Non-text elements, placeholder text |
| Black text on #90D9DA | 13.12:1 | AAA | Lc 76.8 | Fine for body text |
| #90D9DA text on white | 1.60:1 | Fails | Lc 27.0 | Dividers and decoration only |
| #90D9DA text on black | 13.12:1 | AAA | Lc -76.0 | 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 300.
-
Step 50
50
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#DBEFEF
oklch(93.7% 0.021 196.8)
-
Step 200
200
#BBE2E2
oklch(88.5% 0.041 196.4)
-
Step 300
300 (this color)
#90D9DA
oklch(83.8% 0.073 197)
-
Step 400
400
#1CB6B9
oklch(70.6% 0.116 197)
-
Step 500
500
#009DA0
oklch(63.1% 0.107 197.2)
-
Step 600
600
#008486
oklch(55.6% 0.095 196.7)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#90D9DA 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) | #D0D2DA | 0.076 |
| Deuteranopia (no green cones) | #C2C8DB | 0.071 |
| Tritanopia (no blue cones) | #73DED9 | 0.028 |
| Achromatopsia (no color) | #CCCCCC | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D9DA
#90D9DA
oklch(83.8% 0.073 197)
- #F6B7B9
#F6B7B9
oklch(83.8% 0.073 16.6)
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 #90D9DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.027
- Light Blue #ADD8E6 ΔE 0.038
- Tiffany Blue #94D2BD ΔE 0.039
- Powder Blue #B0E0E6 ΔE 0.044
- Sky Blue #87CEEB ΔE 0.046
- Light Teal #90E4C1 ΔE 0.053
- Seafoam Blue #78D1B6 ΔE 0.059
- Robin's Egg #6DEDFD ΔE 0.061
Use #90D9DA 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.