#57A6BB
Closest named color: Greyblue (#77A1B5). oklch(68.3% 0.083 217.3), rgb(87, 166, 187).
Aa
Black text reads best on this color (7.57:1).
About this color
#57A6BB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.083 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.032 away. Black text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.57:1 |
| White text | 2.77:1 |
Values
| HEX | #57A6BB |
| RGB | rgb(87, 166, 187) |
| HSL | hsl(193, 42%, 54%) |
| OKLCH | oklch(68.3% 0.083 217.3) |
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 #57A6BB | 2.77:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #57A6BB | 7.57:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #57A6BB text on white | 2.77:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #57A6BB text on black | 7.57:1 | AAA | Lc -48.6 | 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
#C5DEE6
oklch(88.5% 0.029 219)
-
Step 300
300
#9BC9D7
oklch(80.8% 0.052 218.4)
-
Step 400
400 (this color)
#57A6BB
oklch(68.3% 0.083 217.3)
-
Step 500
500
#1E99B4
oklch(63.2% 0.107 217.3)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#052C34
oklch(27.1% 0.044 214.8)
#57A6BB 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) | #98A2BC | 0.073 |
| Deuteranopia (no green cones) | #8996BB | 0.067 |
| Tritanopia (no blue cones) | #05AEAC | 0.052 |
| Achromatopsia (no color) | #9B9B9B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A6BB
#57A6BB
oklch(68.3% 0.083 217.3)
- #C78774
#C78774
oklch(68.3% 0.084 37.2)
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 #57A6BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.032
- Cadet Blue #5F9EA0 ΔE 0.040
- Turquoise Blue #06B1C4 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.048
- Bluey Grey #89A0B0 ΔE 0.053
- Light Sea Green #20B2AA ΔE 0.057
- Dull Teal #5F9E8F ΔE 0.062
- Cool Gray #8D99AE ΔE 0.064
Use #57A6BB 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.