#90CFFB
Closest named color: Light Sky Blue (#87CEFA). oklch(82.8% 0.089 239.7), rgb(144, 207, 251).
Aa
Black text reads best on this color (12.50:1).
About this color
#90CFFB is a light, moderately saturated blue. In OKLCH its lightness is 83%, its chroma 0.089 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sky Blue (#87CEFA), ΔE 0.010 away. Black text reads best on it, at 12.50:1.
| Hue family | Blues |
| Lightness | light (83%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Light Sky Blue (#87CEFA) |
| Black text | 12.50:1 |
| White text | 1.67:1 |
Values
| HEX | #90CFFB |
| RGB | rgb(144, 207, 251) |
| HSL | hsl(205, 93%, 77%) |
| OKLCH | oklch(82.8% 0.089 239.7) |
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 #90CFFB | 1.67:1 | Fails | Lc -33.4 | Non-text elements, placeholder text |
| Black text on #90CFFB | 12.50:1 | AAA | Lc 74.2 | Content text, not long reading |
| #90CFFB text on white | 1.67:1 | Fails | Lc 29.6 | Dividers and decoration only |
| #90CFFB text on black | 12.50:1 | AAA | Lc -73.2 | 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
#DBEDFA
oklch(93.7% 0.026 239.1)
-
Step 200
200
#BCDEF7
oklch(88.4% 0.05 240)
-
Step 300
300 (this color)
#90CFFB
oklch(82.8% 0.089 239.7)
-
Step 400
400
#34ABF0
oklch(70.8% 0.143 239.6)
-
Step 500
500
#0093D7
oklch(63.2% 0.144 239.7)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#00466A
oklch(37.6% 0.086 240.1)
-
Step 950
950
#002A41
oklch(27.1% 0.061 239)
#90CFFB 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) | #BCCEFD | 0.051 |
| Deuteranopia (no green cones) | #ADC3FA | 0.043 |
| Tritanopia (no blue cones) | #65DADD | 0.072 |
| Achromatopsia (no color) | #C8C8C8 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CFFB
#90CFFB
oklch(82.8% 0.089 239.7)
- #F2B98C
#F2B98C
oklch(82.7% 0.089 59.4)
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 #90CFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sky Blue #87CEFA ΔE 0.010
- Baby Blue #A2CFFE ΔE 0.021
- Sky #82CAFC ΔE 0.021
- Sky Blue #87CEEB ΔE 0.026
- Lightblue #7BC8F6 ΔE 0.030
- Pastel Blue #A2BFFE ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.051
- Light Cornflower Blue #98C1D9 ΔE 0.052
Use #90CFFB 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.