#57D4E2
Closest named color: Aqua Blue (#02D8E9). oklch(80.6% 0.111 205.5), rgb(87, 212, 226).
Aa
Black text reads best on this color (11.92:1).
About this color
#57D4E2 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 81%, its chroma 0.111 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.026 away. Black text reads best on it, at 11.92:1.
| Hue family | Teals and cyans |
| Lightness | light (81%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 11.92:1 |
| White text | 1.76:1 |
Values
| HEX | #57D4E2 |
| RGB | rgb(87, 212, 226) |
| HSL | hsl(186, 71%, 61%) |
| OKLCH | oklch(80.6% 0.111 205.5) |
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 #57D4E2 | 1.76:1 | Fails | Lc -35.9 | Non-text elements, placeholder text |
| Black text on #57D4E2 | 11.92:1 | AAA | Lc 71.9 | Content text, not long reading |
| #57D4E2 text on white | 1.76:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #57D4E2 text on black | 11.92:1 | AAA | Lc -70.7 | 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
#EBF9FA
oklch(97.2% 0.015 202.1)
-
Step 100
100
#D2F1F4
oklch(93.7% 0.033 203.7)
-
Step 200
200
#A9E5ED
oklch(88.4% 0.062 206.4)
-
Step 300
300 (this color)
#57D4E2
oklch(80.6% 0.111 205.5)
-
Step 400
400
#00B5C5
oklch(70.6% 0.121 206)
-
Step 500
500
#009CA9
oklch(63.2% 0.108 205.2)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
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)
#57D4E2 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) | #C4CCE3 | 0.109 |
| Deuteranopia (no green cones) | #AFBCE2 | 0.101 |
| Tritanopia (no blue cones) | #00DCD8 | 0.040 |
| Achromatopsia (no color) | #C3C3C3 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57D4E2
#57D4E2
oklch(80.6% 0.111 205.5)
- #FFA39B
#FFA39B
oklch(80.5% 0.111 25.2)
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 #57D4E2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.026
- Medium Turquoise #48D1CC ΔE 0.034
- Vivid Sky Blue #4CC9F0 ΔE 0.043
- Dark Turquoise #00CED1 ΔE 0.044
- Sky Blue #87CEEB ΔE 0.045
- Turquoise #40E0D0 ΔE 0.050
- Lightblue #7BC8F6 ΔE 0.057
- Bright Sky Blue #02CCFE ΔE 0.058
Use #57D4E2 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.