#90D7EB
Closest named color: Sky Blue (#87CEEB). oklch(83.9% 0.076 217.4), rgb(144, 215, 235).
Aa
Black text reads best on this color (13.10:1).
About this color
#90D7EB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 84%, its chroma 0.076 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.028 away. Black text reads best on it, at 13.10:1.
| Hue family | Teals and cyans |
| Lightness | light (84%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 13.10:1 |
| White text | 1.60:1 |
Values
| HEX | #90D7EB |
| RGB | rgb(144, 215, 235) |
| HSL | hsl(193, 69%, 74%) |
| OKLCH | oklch(83.9% 0.076 217.4) |
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 #90D7EB | 1.60:1 | Fails | Lc -30.6 | Non-text elements, placeholder text |
| Black text on #90D7EB | 13.10:1 | AAA | Lc 76.7 | Fine for body text |
| #90D7EB text on white | 1.60:1 | Fails | Lc 27.1 | Dividers and decoration only |
| #90D7EB text on black | 13.10:1 | AAA | Lc -75.9 | 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
#EEF7FA
oklch(97% 0.01 219.6)
-
Step 100
100
#DAEEF4
oklch(93.6% 0.023 217.6)
-
Step 200
200
#BBE1EC
oklch(88.6% 0.043 217.2)
-
Step 300
300 (this color)
#90D7EB
oklch(83.9% 0.076 217.4)
-
Step 400
400
#1DB2D2
oklch(70.6% 0.122 217.5)
-
Step 500
500
#0099B6
oklch(63% 0.113 217.6)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#90D7EB 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) | #CAD3EC | 0.068 |
| Deuteranopia (no green cones) | #BBC8EB | 0.060 |
| Tritanopia (no blue cones) | #6CDEDD | 0.045 |
| Achromatopsia (no color) | #CCCCCC | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90D7EB
#90D7EB
oklch(83.9% 0.076 217.4)
- #F7BAA7
#F7BAA7
oklch(84% 0.076 38)
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 #90D7EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.028
- Light Blue #ADD8E6 ΔE 0.032
- Celeste #A8DADC ΔE 0.035
- Light Sky Blue #87CEFA ΔE 0.039
- Baby Blue #A2CFFE ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.046
- Sky #82CAFC ΔE 0.051
- Light Blue Grey #B7C9E2 ΔE 0.052
Use #90D7EB 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.