#57A7BB
Closest named color: Greyblue (#77A1B5). oklch(68.5% 0.083 216.1), rgb(87, 167, 187).
Aa
Black text reads best on this color (7.65:1).
About this color
#57A7BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.083 and its hue 216°. 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 7.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.65:1 |
| White text | 2.74:1 |
Values
| HEX | #57A7BB |
| RGB | rgb(87, 167, 187) |
| HSL | hsl(192, 42%, 54%) |
| OKLCH | oklch(68.5% 0.083 216.1) |
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 #57A7BB | 2.74:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #57A7BB | 7.65:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #57A7BB text on white | 2.74:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #57A7BB text on black | 7.65:1 | AAA | Lc -49.0 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DEE5
oklch(88.4% 0.028 216.4)
-
Step 300
300
#9BCAD6
oklch(81% 0.052 215.1)
-
Step 400
400 (this color)
#57A7BB
oklch(68.5% 0.083 216.1)
-
Step 500
500
#1B99B3
oklch(63.1% 0.107 216.4)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006C80
oklch(49% 0.087 216.4)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900
#004A58
oklch(37.7% 0.067 215.8)
-
Step 950
950
#052C34
oklch(27.1% 0.044 214.8)
#57A7BB 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) | #99A3BC | 0.074 |
| Deuteranopia (no green cones) | #8A97BB | 0.067 |
| Tritanopia (no blue cones) | #04AEAD | 0.050 |
| Achromatopsia (no color) | #9C9C9C | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A7BB
#57A7BB
oklch(68.5% 0.083 216.1)
- #C88876
#C88876
oklch(68.7% 0.083 36.4)
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 #57A7BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.033
- Turquoise Blue #06B1C4 ΔE 0.040
- Cadet Blue #5F9EA0 ΔE 0.040
- Bluegrey #85A3B2 ΔE 0.047
- Bluey Grey #89A0B0 ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.056
- Dull Teal #5F9E8F ΔE 0.062
- Cool Gray #8D99AE ΔE 0.065
Use #57A7BB 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.