#90CBEA
Closest named color: Sky Blue (#87CEEB). oklch(81.3% 0.075 231.8), rgb(144, 203, 234).
Aa
Black text reads best on this color (11.91:1).
About this color
#90CBEA is a light, moderately saturated blue. In OKLCH its lightness is 81%, its chroma 0.075 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.011 away. Black text reads best on it, at 11.91:1.
| Hue family | Blues |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.91:1 |
| White text | 1.76:1 |
Values
| HEX | #90CBEA |
| RGB | rgb(144, 203, 234) |
| HSL | hsl(201, 68%, 74%) |
| OKLCH | oklch(81.3% 0.075 231.8) |
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 #90CBEA | 1.76:1 | Fails | Lc -36.2 | Non-text elements, placeholder text |
| Black text on #90CBEA | 11.91:1 | AAA | Lc 71.6 | Content text, not long reading |
| #90CBEA text on white | 1.76:1 | Fails | Lc 32.2 | Non-text elements, placeholder text |
| #90CBEA text on black | 11.91:1 | AAA | Lc -70.5 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF6
oklch(93.6% 0.022 230.5)
-
Step 200
200
#BFDFF0
oklch(88.6% 0.041 231)
-
Step 300
300 (this color)
#90CBEA
oklch(81.3% 0.075 231.8)
-
Step 400
400
#42ADDE
oklch(70.7% 0.12 232)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#90CBEA 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) | #BCC9EC | 0.052 |
| Deuteranopia (no green cones) | #AFBFEA | 0.046 |
| Tritanopia (no blue cones) | #6ED4D5 | 0.056 |
| Achromatopsia (no color) | #C3C3C3 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CBEA
#90CBEA
oklch(81.3% 0.075 231.8)
- #EAB596
#EAB596
oklch(81.4% 0.075 51.7)
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 #90CBEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.011
- Light Sky Blue #87CEFA ΔE 0.023
- Sky #82CAFC ΔE 0.029
- Lightblue #7BC8F6 ΔE 0.029
- Light Cornflower Blue #98C1D9 ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.037
- Cloudy Blue #ACC2D9 ΔE 0.039
- Light Steel Blue #B0C4DE ΔE 0.039
Use #90CBEA 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.