#57BEDB
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(75.2% 0.103 219.2), rgb(87, 190, 219).
Aa
Black text reads best on this color (9.79:1).
About this color
#57BEDB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.103 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.036 away. Black text reads best on it, at 9.79:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 9.79:1 |
| White text | 2.14:1 |
Values
| HEX | #57BEDB |
| RGB | rgb(87, 190, 219) |
| HSL | hsl(193, 65%, 60%) |
| OKLCH | oklch(75.2% 0.103 219.2) |
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 #57BEDB | 2.14:1 | Fails | Lc -46.5 | Large or bold text, headings |
| Black text on #57BEDB | 9.79:1 | AAA | Lc 62.1 | Content text, not long reading |
| #57BEDB text on white | 2.14:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #57BEDB text on black | 9.79:1 | AAA | Lc -60.4 | 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 400.
-
Step 50
50
#EFF7F9
oklch(97.1% 0.009 214.3)
-
Step 100
100
#DDEDF2
oklch(93.6% 0.018 218.4)
-
Step 200
200
#C0DFE9
oklch(88.4% 0.036 219.2)
-
Step 300
300
#91CBDD
oklch(80.9% 0.065 219.1)
-
Step 400
400 (this color)
#57BEDB
oklch(75.2% 0.103 219.2)
-
Step 500
500
#0099B8
oklch(63.1% 0.114 219)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#57BEDB 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) | #ACB9DD | 0.088 |
| Deuteranopia (no green cones) | #99ABDB | 0.079 |
| Tritanopia (no blue cones) | #00C8C7 | 0.056 |
| Achromatopsia (no color) | #B1B1B1 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57BEDB
#57BEDB
oklch(75.2% 0.103 219.2)
- #E7987D
#E7987D
oklch(75.2% 0.103 39.6)
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 #57BEDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.036
- Bright Sky Blue #02CCFE ΔE 0.056
- Lightblue #7BC8F6 ΔE 0.057
- Dark Turquoise #00CED1 ΔE 0.057
- Deep Sky Blue #00BFFF ΔE 0.057
- Turquoise Blue #06B1C4 ΔE 0.062
- Light Cornflower Blue #98C1D9 ΔE 0.064
- Medium Turquoise #48D1CC ΔE 0.064
Use #57BEDB 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.