#57CFFA
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(80.4% 0.122 225.2), rgb(87, 207, 250).
Aa
Black text reads best on this color (11.71:1).
About this color
#57CFFA is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.122 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.022 away. Black text reads best on it, at 11.71:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 11.71:1 |
| White text | 1.79:1 |
Values
| HEX | #57CFFA |
| RGB | rgb(87, 207, 250) |
| HSL | hsl(196, 94%, 66%) |
| OKLCH | oklch(80.4% 0.122 225.2) |
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 #57CFFA | 1.79:1 | Fails | Lc -36.9 | Non-text elements, placeholder text |
| Black text on #57CFFA | 11.71:1 | AAA | Lc 71.0 | Content text, not long reading |
| #57CFFA text on white | 1.79:1 | Fails | Lc 32.9 | Non-text elements, placeholder text |
| #57CFFA text on black | 11.71:1 | AAA | Lc -69.7 | 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
#EBF8FE
oklch(97.1% 0.016 227)
-
Step 100
100
#D2EFFC
oklch(93.5% 0.035 226.6)
-
Step 200
200
#A9E3FB
oklch(88.4% 0.068 225.4)
-
Step 300
300 (this color)
#57CFFA
oklch(80.4% 0.122 225.2)
-
Step 400
400
#00B1DF
oklch(70.7% 0.134 225)
-
Step 500
500
#0098C0
oklch(63.2% 0.12 225)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#57CFFA 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) | #B7CBFC | 0.093 |
| Deuteranopia (no green cones) | #A1BAFA | 0.083 |
| Tritanopia (no blue cones) | #00DCDD | 0.069 |
| Achromatopsia (no color) | #C1C1C1 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57CFFA
#57CFFA
oklch(80.4% 0.122 225.2)
- #FFA57C
#FFA57C
oklch(80.3% 0.12 45.1)
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 #57CFFA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.022
- Lightblue #7BC8F6 ΔE 0.030
- Bright Sky Blue #02CCFE ΔE 0.031
- Sky #82CAFC ΔE 0.036
- Light Sky Blue #87CEFA ΔE 0.039
- Sky Blue #87CEEB ΔE 0.042
- Aqua Blue #02D8E9 ΔE 0.048
- Deep Sky Blue #00BFFF ΔE 0.060
Use #57CFFA 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.