#90D9DF
Closest named color: Celeste (#A8DADC). oklch(84% 0.073 202.4), rgb(144, 217, 223).
Aa
Black text reads best on this color (13.17:1).
About this color
#90D9DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.073 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.026 away. Black text reads best on it, at 13.17:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.17:1 |
| White text | 1.59:1 |
Values
| HEX | #90D9DF |
| RGB | rgb(144, 217, 223) |
| HSL | hsl(185, 55%, 72%) |
| OKLCH | oklch(84% 0.073 202.4) |
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 #90D9DF | 1.59:1 | Fails | Lc -30.2 | Non-text elements, placeholder text |
| Black text on #90D9DF | 13.17:1 | AAA | Lc 77.0 | Fine for body text |
| #90D9DF text on white | 1.59:1 | Fails | Lc 26.8 | Dividers and decoration only |
| #90D9DF text on black | 13.17:1 | AAA | Lc -76.2 | 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
#DAEEF0
oklch(93.5% 0.021 204)
-
Step 200
200
#BBE2E5
oklch(88.6% 0.041 202.2)
-
Step 300
300 (this color)
#90D9DF
oklch(84% 0.073 202.4)
-
Step 400
400
#19B6C0
oklch(70.8% 0.117 202)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#90D9DF 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) | #CFD3E0 | 0.074 |
| Deuteranopia (no green cones) | #C1C8DF | 0.069 |
| Tritanopia (no blue cones) | #71DEDB | 0.031 |
| Achromatopsia (no color) | #CDCDCD | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D9DF
#90D9DF
oklch(84% 0.073 202.4)
- #F7B8B5
#F7B8B5
oklch(84% 0.074 21.9)
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 #90D9DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.026
- Light Blue #ADD8E6 ΔE 0.034
- Sky Blue #87CEEB ΔE 0.041
- Powder Blue #B0E0E6 ΔE 0.042
- Tiffany Blue #94D2BD ΔE 0.045
- Light Sky Blue #87CEFA ΔE 0.057
- Robin's Egg #6DEDFD ΔE 0.058
- Light Teal #90E4C1 ΔE 0.060
Use #90D9DF 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.