#90DDEA
Closest named color: Celeste (#A8DADC). oklch(85.2% 0.078 209.2), rgb(144, 221, 234).
Aa
Black text reads best on this color (13.71:1).
About this color
#90DDEA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.078 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.028 away. Black text reads best on it, at 13.71:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.71:1 |
| White text | 1.53:1 |
Values
| HEX | #90DDEA |
| RGB | rgb(144, 221, 234) |
| HSL | hsl(189, 68%, 74%) |
| OKLCH | oklch(85.2% 0.078 209.2) |
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 #90DDEA | 1.53:1 | Fails | Lc -27.8 | Dividers and decoration only |
| Black text on #90DDEA | 13.71:1 | AAA | Lc 79.3 | Fine for body text |
| #90DDEA text on white | 1.53:1 | Fails | Lc 24.5 | Dividers and decoration only |
| #90DDEA text on black | 13.71:1 | AAA | Lc -78.6 | 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
#ECF8FA
oklch(97.1% 0.013 208.8)
-
Step 100
100
#D5F0F4
oklch(93.7% 0.029 207.4)
-
Step 200
200 (this color)
#90DDEA
oklch(85.2% 0.078 209.2)
-
Step 300
300
#69D3E3
oklch(81% 0.1 208.4)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAD
oklch(63.1% 0.109 209.2)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#90DDEA 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) | #D1D7EB | 0.076 |
| Deuteranopia (no green cones) | #C2CCEA | 0.069 |
| Tritanopia (no blue cones) | #6BE4E1 | 0.040 |
| Achromatopsia (no color) | #D1D1D1 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90DDEA
#90DDEA
oklch(85.2% 0.078 209.2)
- #FDBCB1
#FDBCB1
oklch(85.2% 0.077 29.6)
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 #90DDEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.028
- Light Blue #ADD8E6 ΔE 0.031
- Powder Blue #B0E0E6 ΔE 0.036
- Sky Blue #87CEEB ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.046
- Robin's Egg Blue #98EFF9 ΔE 0.049
- Robin Egg Blue #8AF1FE ΔE 0.052
- Light Sky Blue #87CEFA ΔE 0.054
Use #90DDEA 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.