#57AF8A
Closest named color: Greeny Blue (#42B395). oklch(68.9% 0.102 164), rgb(87, 175, 138).
Aa
Black text reads best on this color (7.90:1).
About this color
#57AF8A is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.102 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.019 away. Black text reads best on it, at 7.90:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.90:1 |
| White text | 2.65:1 |
Values
| HEX | #57AF8A |
| RGB | rgb(87, 175, 138) |
| HSL | hsl(155, 35%, 51%) |
| OKLCH | oklch(68.9% 0.102 164) |
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 #57AF8A | 2.65:1 | Fails | Lc -56.7 | Large or bold text, headings |
| Black text on #57AF8A | 7.90:1 | AAA | Lc 52.5 | Large or bold text, headings |
| #57AF8A text on white | 2.65:1 | Fails | Lc 51.5 | Large or bold text, headings |
| #57AF8A text on black | 7.90:1 | AAA | Lc -50.4 | 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
#DFEEE6
oklch(93.6% 0.019 162.9)
-
Step 200
200
#C5E1D3
oklch(88.5% 0.035 164.1)
-
Step 300
300
#9BCEB6
oklch(80.9% 0.063 164.4)
-
Step 400
400 (this color)
#57AF8A
oklch(68.9% 0.102 164)
-
Step 500
500
#13A274
oklch(63.2% 0.131 163.9)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#004F36
oklch(37.9% 0.081 163.8)
-
Step 950
950
#042E1F
oklch(26.8% 0.053 164.2)
#57AF8A 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) | #ACA488 | 0.101 |
| Deuteranopia (no green cones) | #9F9B8C | 0.097 |
| Tritanopia (no blue cones) | #39AFA5 | 0.041 |
| Achromatopsia (no color) | #9F9F9F | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AF8A
#57AF8A
oklch(68.9% 0.102 164)
- #C881AB
#C881AB
oklch(68.9% 0.103 343.8)
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 #57AF8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.019
- Tea #65AB7C ΔE 0.020
- Dark Seafoam Green #3EAF76 ΔE 0.036
- Dusty Green #76A973 ΔE 0.037
- Bluey Green #2BB179 ΔE 0.041
- Algae #54AC68 ΔE 0.045
- Faded Green #7BB274 ΔE 0.045
- Dark Seafoam #1FB57A ΔE 0.046
Use #57AF8A 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.