#57B8D5
Closest named color: Turquoise Blue (#06B1C4). oklch(73.6% 0.1 220.3), rgb(87, 184, 213).
Aa
Black text reads best on this color (9.22:1).
About this color
#57B8D5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.100 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.049 away. Black text reads best on it, at 9.22:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.22:1 |
| White text | 2.27:1 |
Values
| HEX | #57B8D5 |
| RGB | rgb(87, 184, 213) |
| HSL | hsl(194, 60%, 59%) |
| OKLCH | oklch(73.6% 0.1 220.3) |
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 #57B8D5 | 2.27:1 | Fails | Lc -49.5 | Large or bold text, headings |
| Black text on #57B8D5 | 9.22:1 | AAA | Lc 59.3 | Large or bold text, headings |
| #57B8D5 text on white | 2.27:1 | Fails | Lc 44.7 | Non-text elements, placeholder text |
| #57B8D5 text on black | 9.22:1 | AAA | Lc -57.4 | Large or bold text, headings |
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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DDEDF2
oklch(93.6% 0.018 218.4)
-
Step 200
200
#C1DFE9
oklch(88.5% 0.035 219.9)
-
Step 300
300
#94CBDD
oklch(81% 0.062 220.1)
-
Step 400
400 (this color)
#57B8D5
oklch(73.6% 0.1 220.3)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809C
oklch(55.5% 0.101 220.3)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#57B8D5 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) | #A6B4D7 | 0.083 |
| Deuteranopia (no green cones) | #94A6D5 | 0.075 |
| Tritanopia (no blue cones) | #00C2C1 | 0.057 |
| Achromatopsia (no color) | #ACACAC | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B8D5
#57B8D5
oklch(73.6% 0.1 220.3)
- #DF9479
#DF9479
oklch(73.5% 0.099 40.6)
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 #57B8D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.049
- Vivid Sky Blue #4CC9F0 ΔE 0.052
- Deep Sky Blue #00BFFF ΔE 0.062
- Dark Turquoise #00CED1 ΔE 0.067
- Greyblue #77A1B5 ΔE 0.068
- Bright Sky Blue #02CCFE ΔE 0.069
- Lightblue #7BC8F6 ΔE 0.070
- Topaz #13BBAF ΔE 0.071
Use #57B8D5 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.