#57AE91
Closest named color: Greeny Blue (#42B395). oklch(68.8% 0.096 169.4), rgb(87, 174, 145).
Aa
Black text reads best on this color (7.86:1).
About this color
#57AE91 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.096 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.018 away. Black text reads best on it, at 7.86:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.86:1 |
| White text | 2.66:1 |
Values
| HEX | #57AE91 |
| RGB | rgb(87, 174, 145) |
| HSL | hsl(160, 35%, 51%) |
| OKLCH | oklch(68.8% 0.096 169.4) |
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 #57AE91 | 2.66:1 | Fails | Lc -56.9 | Large or bold text, headings |
| Black text on #57AE91 | 7.86:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #57AE91 text on white | 2.66:1 | Fails | Lc 51.7 | Large or bold text, headings |
| #57AE91 text on black | 7.86:1 | AAA | Lc -50.2 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C5E1D5
oklch(88.6% 0.034 167.9)
-
Step 300
300
#9BCEBA
oklch(81% 0.06 168.7)
-
Step 400
400 (this color)
#57AE91
oklch(68.8% 0.096 169.4)
-
Step 500
500
#14A17D
oklch(63.2% 0.123 169.1)
-
Step 600
600
#008868
oklch(55.7% 0.112 168.9)
-
Step 700
700
#007257
oklch(49.1% 0.098 169.1)
-
Step 800
800
#005E47
oklch(42.8% 0.086 168.9)
-
Step 900
900
#004E3B
oklch(37.7% 0.075 169.6)
-
Step 950
950
#042E22
oklch(26.9% 0.05 169.1)
#57AE91 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) | #AAA490 | 0.098 |
| Deuteranopia (no green cones) | #9C9A93 | 0.094 |
| Tritanopia (no blue cones) | #36AFA6 | 0.034 |
| Achromatopsia (no color) | #9E9E9E | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AE91
#57AE91
oklch(68.8% 0.096 169.4)
- #C882A4
#C882A4
oklch(68.9% 0.096 349.3)
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 #57AE91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.018
- Tea #65AB7C ΔE 0.028
- Light Sea Green #20B2AA ΔE 0.040
- Dusty Green #76A973 ΔE 0.043
- Dark Seafoam Green #3EAF76 ΔE 0.046
- Dull Teal #5F9E8F ΔE 0.046
- Topaz #13BBAF ΔE 0.050
- Bluey Green #2BB179 ΔE 0.050
Use #57AE91 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.