#90DCEF
Closest named color: Light Blue (#ADD8E6). oklch(85.2% 0.079 215.3), rgb(144, 220, 239).
Aa
Black text reads best on this color (13.66:1).
About this color
#90DCEF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.079 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue (#ADD8E6), ΔE 0.031 away. Black text reads best on it, at 13.66:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Light Blue (#ADD8E6) |
| Black text | 13.66:1 |
| White text | 1.53:1 |
Values
| HEX | #90DCEF |
| RGB | rgb(144, 220, 239) |
| HSL | hsl(192, 75%, 75%) |
| OKLCH | oklch(85.2% 0.079 215.3) |
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 #90DCEF | 1.53:1 | Fails | Lc -28.0 | Dividers and decoration only |
| Black text on #90DCEF | 13.66:1 | AAA | Lc 79.1 | Fine for body text |
| #90DCEF text on white | 1.53:1 | Fails | Lc 24.7 | Dividers and decoration only |
| #90DCEF text on black | 13.66:1 | AAA | Lc -78.4 | 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 200.
-
Step 50
50
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5EFF6
oklch(93.5% 0.029 215.7)
-
Step 200
200 (this color)
#90DCEF
oklch(85.2% 0.079 215.3)
-
Step 300
300
#69D1EA
oklch(80.8% 0.102 215.6)
-
Step 400
400
#00B3D1
oklch(70.6% 0.125 215.4)
-
Step 500
500
#009AB4
oklch(63.2% 0.112 215.3)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#002C35
oklch(27% 0.048 215.4)
#90DCEF 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) | #CED7F0 | 0.071 |
| Deuteranopia (no green cones) | #BFCBEF | 0.066 |
| Tritanopia (no blue cones) | #69E3E2 | 0.045 |
| Achromatopsia (no color) | #D0D0D0 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90DCEF
#90DCEF
oklch(85.2% 0.079 215.3)
- #FDBCAB
#FDBCAB
oklch(85% 0.079 35.2)
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 #90DCEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue #ADD8E6 ΔE 0.031
- Celeste #A8DADC ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.039
- Sky Blue #87CEEB ΔE 0.040
- Light Sky Blue #87CEFA ΔE 0.047
- Robin's Egg #6DEDFD ΔE 0.048
- Baby Blue #A2CFFE ΔE 0.050
- Robin's Egg Blue #98EFF9 ΔE 0.051
Use #90DCEF 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.