#90CAFA
Closest named color: Light Sky Blue (#87CEFA). oklch(81.7% 0.091 244.2), rgb(144, 202, 250).
Aa
Black text reads best on this color (12.01:1).
About this color
#90CAFA is a light, moderately saturated blue. In OKLCH its lightness is 82%, its chroma 0.091 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.013 away. Black text reads best on it, at 12.01:1.
| Hue family | Blues |
| Lightness | light (82%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.01:1 |
| White text | 1.74:1 |
Values
| HEX | #90CAFA |
| RGB | rgb(144, 202, 250) |
| HSL | hsl(207, 91%, 77%) |
| OKLCH | oklch(81.7% 0.091 244.2) |
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 #90CAFA | 1.74:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #90CAFA | 12.01:1 | AAA | Lc 72.1 | Content text, not long reading |
| #90CAFA text on white | 1.74:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #90CAFA 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
#EFF7FD
oklch(97.2% 0.012 239.9)
-
Step 100
100
#DCECFB
oklch(93.6% 0.027 246.3)
-
Step 200
200
#BEDEF9
oklch(88.6% 0.05 243.8)
-
Step 300
300 (this color)
#90CAFA
oklch(81.7% 0.091 244.2)
-
Step 400
400
#41A8F4
oklch(70.6% 0.146 244.6)
-
Step 500
500
#0090E0
oklch(63% 0.157 244.4)
-
Step 600
600
#0079BD
oklch(55.5% 0.138 244.2)
-
Step 700
700
#0066A0
oklch(49.2% 0.121 244)
-
Step 800
800
#005384
oklch(42.6% 0.106 244.3)
-
Step 900
900
#00456F
oklch(37.6% 0.093 244.3)
-
Step 950
950
#002944
oklch(27% 0.066 243.6)
#90CAFA 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) | #B6CAFC | 0.045 |
| Deuteranopia (no green cones) | #A8BFF9 | 0.037 |
| Tritanopia (no blue cones) | #66D6DA | 0.076 |
| Achromatopsia (no color) | #C4C4C4 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CAFA
#90CAFA
oklch(81.7% 0.091 244.2)
- #EDB785
#EDB785
oklch(81.7% 0.09 63.8)
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 #90CAFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.013
- Sky #82CAFC ΔE 0.014
- Lightblue #7BC8F6 ΔE 0.023
- Baby Blue #A2CFFE ΔE 0.026
- Sky Blue #87CEEB ΔE 0.029
- Pastel Blue #A2BFFE ΔE 0.036
- Light Cornflower Blue #98C1D9 ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.049
Use #90CAFA 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.