#57A0BB
Closest named color: Greyblue (#77A1B5). oklch(66.9% 0.083 224.3), rgb(87, 160, 187).
Aa
Black text reads best on this color (7.15:1).
About this color
#57A0BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.083 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.034 away. Black text reads best on it, at 7.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.15:1 |
| White text | 2.93:1 |
Values
| HEX | #57A0BB |
| RGB | rgb(87, 160, 187) |
| HSL | hsl(196, 42%, 54%) |
| OKLCH | oklch(66.9% 0.083 224.3) |
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 #57A0BB | 2.93:1 | Fails | Lc -61.0 | Content text, not long reading |
| Black text on #57A0BB | 7.15:1 | AAA | Lc 48.4 | Large or bold text, headings |
| #57A0BB text on white | 2.93:1 | Fails | Lc 55.7 | Large or bold text, headings |
| #57A0BB text on black | 7.15:1 | AAA | Lc -46.1 | 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 500.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D4
oklch(80.9% 0.041 223)
-
Step 400
400
#73AABF
oklch(70.7% 0.065 223.9)
-
Step 500
500 (this color)
#57A0BB
oklch(66.9% 0.083 224.3)
-
Step 600
600
#287E9B
oklch(55.6% 0.091 224.8)
-
Step 700
700
#196A84
oklch(49% 0.084 224.7)
-
Step 800
800
#19576B
oklch(42.7% 0.069 223.8)
-
Step 900
900
#1C4857
oklch(37.8% 0.054 223.5)
-
Step 950
950
#122A33
oklch(27% 0.034 224.8)
#57A0BB 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) | #919DBC | 0.066 |
| Deuteranopia (no green cones) | #8292BB | 0.058 |
| Tritanopia (no blue cones) | #0CA8A9 | 0.056 |
| Achromatopsia (no color) | #979797 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A0BB
#57A0BB
oklch(66.9% 0.083 224.3)
- #C0846A
#C0846A
oklch(66.8% 0.083 44.3)
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 #57A0BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.034
- Cadet Blue #5F9EA0 ΔE 0.039
- Bluegrey #85A3B2 ΔE 0.052
- Turquoise Blue #06B1C4 ΔE 0.053
- Bluey Grey #89A0B0 ΔE 0.056
- Faded Blue #658CBB ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.058
- Blue Grey #758DA3 ΔE 0.059
Use #57A0BB 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.