#57A1BB
Closest named color: Greyblue (#77A1B5). oklch(67.1% 0.083 223.2), rgb(87, 161, 187).
Aa
Black text reads best on this color (7.22:1).
About this color
#57A1BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.083 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.033 away. Black text reads best on it, at 7.22:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #57A1BB |
| RGB | rgb(87, 161, 187) |
| HSL | hsl(196, 42%, 54%) |
| OKLCH | oklch(67.1% 0.083 223.2) |
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 #57A1BB | 2.90:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #57A1BB | 7.22:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #57A1BB text on white | 2.90:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #57A1BB text on black | 7.22:1 | AAA | Lc -46.5 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9DC9D9
oklch(81% 0.052 222.1)
-
Step 400
400 (this color)
#57A1BB
oklch(67.1% 0.083 223.2)
-
Step 500
500
#2997B8
oklch(63.1% 0.106 222.9)
-
Step 600
600
#00809F
oklch(55.6% 0.103 222.6)
-
Step 700
700
#006B86
oklch(49% 0.091 223.1)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#03495C
oklch(37.7% 0.069 223.1)
-
Step 950
950
#082B36
oklch(27% 0.044 223.1)
#57A1BB 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) | #929EBC | 0.067 |
| Deuteranopia (no green cones) | #8393BB | 0.059 |
| Tritanopia (no blue cones) | #0BA9A9 | 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°).
- #57A1BB
#57A1BB
oklch(67.1% 0.083 223.2)
- #C1856C
#C1856C
oklch(67.1% 0.083 43.5)
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 #57A1BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.039
- Turquoise Blue #06B1C4 ΔE 0.051
- Bluegrey #85A3B2 ΔE 0.051
- Bluey Grey #89A0B0 ΔE 0.055
- Silver Lake Blue #778DA9 ΔE 0.060
- Faded Blue #658CBB ΔE 0.060
- Blue Grey #758DA3 ΔE 0.061
Use #57A1BB 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.