#90DCEB
Closest named color: Celeste (#A8DADC). oklch(85% 0.078 211.4), rgb(144, 220, 235).
Aa
Black text reads best on this color (13.62:1).
About this color
#90DCEB is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.078 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.030 away. Black text reads best on it, at 13.62:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.62:1 |
| White text | 1.54:1 |
Values
| HEX | #90DCEB |
| RGB | rgb(144, 220, 235) |
| HSL | hsl(190, 69%, 74%) |
| OKLCH | oklch(85% 0.078 211.4) |
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 #90DCEB | 1.54:1 | Fails | Lc -28.2 | Dividers and decoration only |
| Black text on #90DCEB | 13.62:1 | AAA | Lc 78.9 | Fine for body text |
| #90DCEB text on white | 1.54:1 | Fails | Lc 24.9 | Dividers and decoration only |
| #90DCEB text on black | 13.62:1 | AAA | Lc -78.2 | 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
#D5F0F5
oklch(93.7% 0.029 210)
-
Step 200
200 (this color)
#90DCEB
oklch(85% 0.078 211.4)
-
Step 300
300
#6AD2E6
oklch(80.9% 0.1 211.8)
-
Step 400
400
#00B4CC
oklch(70.6% 0.123 211.4)
-
Step 500
500
#009BAF
oklch(63.2% 0.11 210.8)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004A55
oklch(37.5% 0.065 211.6)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#90DCEB 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) | #CFD7EC | 0.073 |
| Deuteranopia (no green cones) | #C0CBEB | 0.067 |
| Tritanopia (no blue cones) | #6BE3E0 | 0.042 |
| Achromatopsia (no color) | #D0D0D0 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90DCEB
#90DCEB
oklch(85% 0.078 211.4)
- #FDBCAF
#FDBCAF
oklch(85.1% 0.078 31.5)
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 #90DCEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.030
- Light Blue #ADD8E6 ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.038
- Sky Blue #87CEEB ΔE 0.041
- Robin's Egg #6DEDFD ΔE 0.048
- Light Sky Blue #87CEFA ΔE 0.051
- Robin's Egg Blue #98EFF9 ΔE 0.052
- Baby Blue #A2CFFE ΔE 0.054
Use #90DCEB 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.