#90CDD4
Closest named color: Sky Blue (#87CEEB). oklch(80.9% 0.063 205), rgb(144, 205, 212).
Aa
Black text reads best on this color (11.86:1).
About this color
#90CDD4 is a light, muted teal or cyan. In OKLCH its lightness is 81%, its chroma 0.063 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Sky Blue (#87CEEB), ΔE 0.033 away. Black text reads best on it, at 11.86:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Sky Blue (#87CEEB) |
| Black text | 11.86:1 |
| White text | 1.76:1 |
Values
| HEX | #90CDD4 |
| RGB | rgb(144, 205, 212) |
| HSL | hsl(186, 44%, 70%) |
| OKLCH | oklch(80.9% 0.063 205) |
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 #90CDD4 | 1.76:1 | Fails | Lc -36.4 | Non-text elements, placeholder text |
| Black text on #90CDD4 | 11.86:1 | AAA | Lc 71.4 | Content text, not long reading |
| #90CDD4 text on white | 1.76:1 | Fails | Lc 32.4 | Non-text elements, placeholder text |
| #90CDD4 text on black | 11.86:1 | AAA | Lc -70.2 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DDEEF0
oklch(93.7% 0.018 205.3)
-
Step 200
200
#BFE0E4
oklch(88.4% 0.035 205.5)
-
Step 300
300 (this color)
#90CDD4
oklch(80.9% 0.063 205)
-
Step 400
400
#42B3BE
oklch(70.8% 0.101 204.3)
-
Step 500
500
#009CA8
oklch(63.2% 0.108 204.4)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#90CDD4 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) | #C4C8D5 | 0.063 |
| Deuteranopia (no green cones) | #B8BFD4 | 0.058 |
| Tritanopia (no blue cones) | #77D2CF | 0.029 |
| Achromatopsia (no color) | #C3C3C3 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90CDD4
#90CDD4
oklch(80.9% 0.063 205)
- #E7B2AC
#E7B2AC
oklch(81% 0.063 25.9)
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 #90CDD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sky Blue #87CEEB ΔE 0.033
- Light Cornflower Blue #98C1D9 ΔE 0.036
- Tiffany Blue #94D2BD ΔE 0.040
- Cloudy Blue #ACC2D9 ΔE 0.045
- Celeste #A8DADC ΔE 0.047
- Light Grey Blue #9DBCD4 ΔE 0.047
- Light Steel Blue #B0C4DE ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.051
Use #90CDD4 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.