#90CFEF
Closest named color: Sky Blue (#87CEEB). oklch(82.3% 0.078 231), rgb(144, 207, 239).
Aa
Black text reads best on this color (12.35:1).
About this color
#90CFEF is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.078 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.012 away. Black text reads best on it, at 12.35:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 12.35:1 |
| White text | 1.69:1 |
Values
| HEX | #90CFEF |
| RGB | rgb(144, 207, 239) |
| HSL | hsl(200, 75%, 75%) |
| OKLCH | oklch(82.3% 0.078 231) |
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 #90CFEF | 1.69:1 | Fails | Lc -34.1 | Non-text elements, placeholder text |
| Black text on #90CFEF | 12.35:1 | AAA | Lc 73.5 | Content text, not long reading |
| #90CFEF text on white | 1.69:1 | Fails | Lc 30.3 | Non-text elements, placeholder text |
| #90CFEF text on black | 12.35:1 | AAA | Lc -72.5 | 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
#DBEDF6
oklch(93.5% 0.023 229.1)
-
Step 200
200
#BDDFF1
oklch(88.5% 0.044 231)
-
Step 300
300 (this color)
#90CFEF
oklch(82.3% 0.078 231)
-
Step 400
400
#37AEE0
oklch(70.7% 0.125 230.8)
-
Step 500
500
#0096C8
oklch(63.1% 0.127 231)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#90CFEF 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) | #BFCDF1 | 0.055 |
| Deuteranopia (no green cones) | #B2C2EF | 0.049 |
| Tritanopia (no blue cones) | #6BD8D9 | 0.058 |
| Achromatopsia (no color) | #C6C6C6 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CFEF
#90CFEF
oklch(82.3% 0.078 231)
- #EFB797
#EFB797
oklch(82.3% 0.078 51)
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 #90CFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.012
- Light Sky Blue #87CEFA ΔE 0.019
- Sky #82CAFC ΔE 0.030
- Baby Blue #A2CFFE ΔE 0.031
- Lightblue #7BC8F6 ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.041
- Light Steel Blue #B0C4DE ΔE 0.044
- Cloudy Blue #ACC2D9 ΔE 0.046
Use #90CFEF 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.