#57AAA4
Closest named color: Light Sea Green (#20B2AA). oklch(68.4% 0.082 189.2), rgb(87, 170, 164).
Aa
Black text reads best on this color (7.69:1).
About this color
#57AAA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.082 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.033 away. Black text reads best on it, at 7.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.69:1 |
| White text | 2.73:1 |
Values
| HEX | #57AAA4 |
| RGB | rgb(87, 170, 164) |
| HSL | hsl(176, 33%, 50%) |
| OKLCH | oklch(68.4% 0.082 189.2) |
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 #57AAA4 | 2.73:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #57AAA4 | 7.69:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #57AAA4 text on white | 2.73:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #57AAA4 text on black | 7.69:1 | AAA | Lc -49.2 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C5E0DD
oklch(88.6% 0.029 188.5)
-
Step 300
300
#9BCCC7
oklch(80.9% 0.052 188.4)
-
Step 400
400 (this color)
#57AAA4
oklch(68.4% 0.082 189.2)
-
Step 500
500
#1A9D97
oklch(63% 0.104 189.9)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#052D2B
oklch(27% 0.043 190)
#57AAA4 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) | #A2A3A4 | 0.086 |
| Deuteranopia (no green cones) | #9498A5 | 0.082 |
| Tritanopia (no blue cones) | #29AEA8 | 0.027 |
| Achromatopsia (no color) | #9C9C9C | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AAA4
#57AAA4
oklch(68.4% 0.082 189.2)
- #C6848F
#C6848F
oklch(68.3% 0.082 8.5)
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 #57AAA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.033
- Cadet Blue #5F9EA0 ΔE 0.033
- Dull Teal #5F9E8F ΔE 0.038
- Greeny Blue #42B395 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.048
- Topaz #13BBAF ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.051
- Greyblue #77A1B5 ΔE 0.053
Use #57AAA4 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.