#57A4AE
Closest named color: Cadet Blue (#5F9EA0). oklch(67.3% 0.077 206.5), rgb(87, 164, 174).
Aa
Black text reads best on this color (7.32:1).
About this color
#57A4AE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 67%, its chroma 0.077 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.022 away. Black text reads best on it, at 7.32:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #57A4AE |
| RGB | rgb(87, 164, 174) |
| HSL | hsl(187, 35%, 51%) |
| OKLCH | oklch(67.3% 0.077 206.5) |
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 #57A4AE | 2.86:1 | Fails | Lc -60.0 | Large or bold text, headings |
| Black text on #57A4AE | 7.32:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #57A4AE text on white | 2.86:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #57A4AE text on black | 7.32:1 | AAA | Lc -47.1 | 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 400.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200
#C6DFE2
oklch(88.6% 0.027 205.4)
-
Step 300
300
#9DCAD0
oklch(80.9% 0.048 206.4)
-
Step 400
400 (this color)
#57A4AE
oklch(67.3% 0.077 206.5)
-
Step 500
500
#279AA7
oklch(63.1% 0.099 206.4)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#072C30
oklch(27% 0.041 205.5)
#57A4AE 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) | #999FAF | 0.076 |
| Deuteranopia (no green cones) | #8B94AE | 0.070 |
| Tritanopia (no blue cones) | #21AAA7 | 0.039 |
| Achromatopsia (no color) | #999999 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57A4AE
#57A4AE
oklch(67.3% 0.077 206.5)
- #C2847D
#C2847D
oklch(67.4% 0.078 26.4)
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 #57A4AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.022
- Greyblue #77A1B5 ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.044
- Turquoise Blue #06B1C4 ΔE 0.048
- Light Sea Green #20B2AA ΔE 0.050
- Bluegrey #85A3B2 ΔE 0.050
- Grey Teal #5E9B8A ΔE 0.051
- Sea #3C9992 ΔE 0.055
Use #57A4AE 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.