#57ECF3
Closest named color: Robin's Egg (#6DEDFD). oklch(86.7% 0.125 199.6), rgb(87, 236, 243).
Aa
Black text reads best on this color (14.69:1).
About this color
#57ECF3 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 87%, its chroma 0.125 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg (#6DEDFD), ΔE 0.021 away. Black text reads best on it, at 14.69:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Robin's Egg (#6DEDFD) |
| Black text | 14.69:1 |
| White text | 1.42:1 |
Values
| HEX | #57ECF3 |
| RGB | rgb(87, 236, 243) |
| HSL | hsl(183, 87%, 65%) |
| OKLCH | oklch(86.7% 0.125 199.6) |
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 #57ECF3 | 1.42:1 | Fails | Lc -23.1 | Dividers and decoration only |
| Black text on #57ECF3 | 14.69:1 | AAA | Lc 83.5 | Fine for body text |
| #57ECF3 text on white | 1.42:1 | Fails | Lc 20.2 | Dividers and decoration only |
| #57ECF3 text on black | 14.69:1 | AAA | Lc -83.2 | 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
#E6FAFB
oklch(97.1% 0.021 200.4)
-
Step 100
100
#C7F4F6
oklch(93.6% 0.046 199.7)
-
Step 200
200 (this color)
#57ECF3
oklch(86.7% 0.125 199.6)
-
Step 300
300
#00DBE3
oklch(81% 0.138 199.5)
-
Step 400
400
#00B7BD
oklch(70.8% 0.12 199)
-
Step 500
500
#009DA2
oklch(63.2% 0.107 198.8)
-
Step 600
600
#008489
oklch(55.7% 0.095 199.5)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#005B5E
oklch(42.8% 0.073 198.7)
-
Step 900
900
#004C4F
oklch(37.8% 0.064 199.4)
-
Step 950
950
#002D2F
oklch(27% 0.046 199.4)
#57ECF3 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) | #DCE2F4 | 0.128 |
| Deuteranopia (no green cones) | #C4D0F4 | 0.119 |
| Tritanopia (no blue cones) | #00F4EE | 0.032 |
| Achromatopsia (no color) | #D8D8D8 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57ECF3
#57ECF3
oklch(86.7% 0.125 199.6)
- #FFC1C1
#FFC1C1
oklch(86.7% 0.071 18.6)
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 #57ECF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg #6DEDFD ΔE 0.021
- Bright Light Blue #26F7FD ΔE 0.030
- Bright Cyan #41FDFE ΔE 0.044
- Robin Egg Blue #8AF1FE ΔE 0.044
- Bright Aqua #0BF9EA ΔE 0.045
- Bright Turquoise #0FFEF9 ΔE 0.048
- Cyan #00FFFF ΔE 0.050
- Robin's Egg Blue #98EFF9 ΔE 0.053
Use #57ECF3 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.