#90FCF9
Closest named color: Robin Egg Blue (#8AF1FE). oklch(92.6% 0.1 193.2), rgb(144, 252, 249).
Aa
Black text reads best on this color (17.47:1).
About this color
#90FCF9 is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 93%, its chroma 0.100 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Robin Egg Blue (#8AF1FE), ΔE 0.034 away. Black text reads best on it, at 17.47:1.
| Hue family | Teals and cyans |
| Lightness | very light (93%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Robin Egg Blue (#8AF1FE) |
| Black text | 17.47:1 |
| White text | 1.20:1 |
Values
| HEX | #90FCF9 |
| RGB | rgb(144, 252, 249) |
| HSL | hsl(178, 95%, 78%) |
| OKLCH | oklch(92.6% 0.1 193.2) |
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 #90FCF9 | 1.20:1 | Fails | Lc -11.3 | Not readable |
| Black text on #90FCF9 | 17.47:1 | AAA | Lc 93.9 | Preferred for body text |
| #90FCF9 text on white | 1.20:1 | Fails | Lc 9.7 | Not readable |
| #90FCF9 text on black | 17.47:1 | AAA | Lc -94.5 | Preferred 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 100.
-
Step 50
50
#E9F9F9
oklch(97% 0.017 196.9)
-
Step 100
100 (this color)
#90FCF9
oklch(92.6% 0.1 193.2)
-
Step 200
200
#A1E9E6
oklch(88.6% 0.072 192.6)
-
Step 300
300
#34DAD8
oklch(80.8% 0.129 193.7)
-
Step 400
400
#00B8B6
oklch(70.8% 0.121 193.4)
-
Step 500
500
#009E9C
oklch(63.2% 0.108 193.2)
-
Step 600
600
#008483
oklch(55.5% 0.095 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#90FCF9 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) | #F0F2F9 | 0.106 |
| Deuteranopia (no green cones) | #DDE4FA | 0.099 |
| Tritanopia (no blue cones) | #5CFFFB | 0.035 |
| Achromatopsia (no color) | #EAEAEA | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90FCF9
#90FCF9
oklch(92.6% 0.1 193.2)
- #FFDDDF
#FFDDDF
oklch(92.6% 0.038 13.8)
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 #90FCF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin Egg Blue #8AF1FE ΔE 0.034
- Robin's Egg Blue #98EFF9 ΔE 0.035
- Pale Cyan #B7FFFA ΔE 0.039
- Pale Turquoise #AFEEEE ΔE 0.042
- Pale Aqua #B8FFEB ΔE 0.043
- Light Aqua #8CFFDB ΔE 0.045
- Bright Cyan #41FDFE ΔE 0.047
- Pale Sky Blue #BDF6FE ΔE 0.047
Use #90FCF9 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.