#90CED9
Closest named color: Sky Blue (#87CEEB). oklch(81.3% 0.065 209.7), rgb(144, 206, 217).
Aa
Black text reads best on this color (12.01:1).
About this color
#90CED9 is a light, muted teal or cyan. In OKLCH its lightness is 81%, its chroma 0.065 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.027 away. Black text reads best on it, at 12.01:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.01:1 |
| White text | 1.74:1 |
Values
| HEX | #90CED9 |
| RGB | rgb(144, 206, 217) |
| HSL | hsl(189, 49%, 71%) |
| OKLCH | oklch(81.3% 0.065 209.7) |
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 #90CED9 | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #90CED9 | 12.01:1 | AAA | Lc 72.1 | Content text, not long reading |
| #90CED9 text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #90CED9 text on black | 12.01:1 | AAA | Lc -70.9 | Content text, not long reading |
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
#EFF7F9
oklch(97.1% 0.009 214.3)
-
Step 100
100
#DCEEF1
oklch(93.7% 0.019 208.8)
-
Step 200
200
#BFE0E6
oklch(88.5% 0.036 209.8)
-
Step 300
300 (this color)
#90CED9
oklch(81.3% 0.065 209.7)
-
Step 400
400
#3FB2C4
oklch(70.7% 0.104 209.8)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#90CED9 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) | #C4C9DA | 0.063 |
| Deuteranopia (no green cones) | #B7C0D9 | 0.057 |
| Tritanopia (no blue cones) | #75D4D1 | 0.034 |
| Achromatopsia (no color) | #C4C4C4 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CED9
#90CED9
oklch(81.3% 0.065 209.7)
- #E9B3AA
#E9B3AA
oklch(81.3% 0.065 29.4)
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 #90CED9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.027
- Light Cornflower Blue #98C1D9 ΔE 0.036
- Cloudy Blue #ACC2D9 ΔE 0.043
- Celeste #A8DADC ΔE 0.044
- Tiffany Blue #94D2BD ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.047
- Light Sky Blue #87CEFA ΔE 0.048
Use #90CED9 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.