#57B057
Closest named color: Dark Pastel Green (#56AE57). oklch(68.1% 0.152 143.7), rgb(87, 176, 87).
Aa
Black text reads best on this color (7.75:1).
About this color
#57B057 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.152 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Pastel Green (#56AE57), ΔE 0.006 away. Black text reads best on it, at 7.75:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #57B057 |
| RGB | rgb(87, 176, 87) |
| HSL | hsl(120, 36%, 52%) |
| OKLCH | oklch(68.1% 0.152 143.7) |
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 #57B057 | 2.70:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #57B057 | 7.75:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #57B057 text on white | 2.70:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #57B057 text on black | 7.75:1 | AAA | Lc -49.6 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C5E3C3
oklch(88.5% 0.054 143.4)
-
Step 300
300
#9CD199
oklch(80.9% 0.095 143.3)
-
Step 400
400 (this color)
#57B057
oklch(68.1% 0.152 143.7)
-
Step 500
500
#1FA52A
oklch(63% 0.194 143.7)
-
Step 600
600
#008C17
oklch(55.5% 0.182 143.7)
-
Step 700
700
#007611
oklch(49.1% 0.161 143.6)
-
Step 800
800
#00610C
oklch(42.7% 0.14 143.6)
-
Step 900
900
#005109
oklch(37.7% 0.123 143.7)
-
Step 950
950
#063008
oklch(27.1% 0.08 143.7)
#57B057 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) | #B3A24F | 0.113 |
| Deuteranopia (no green cones) | #A79A5D | 0.112 |
| Tritanopia (no blue cones) | #4AAC9B | 0.094 |
| Achromatopsia (no color) | #9D9D9D | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B057
#57B057
oklch(68.1% 0.152 143.7)
- #C575CD
#C575CD
oklch(68% 0.152 323.7)
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 #57B057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.006
- Fern #63A950 ΔE 0.020
- Boring Green #63B365 ΔE 0.022
- Algae #54AC68 ΔE 0.026
- Cool Green #33B864 ΔE 0.027
- Mid Green #50A747 ΔE 0.029
- Medium Sea Green #3CB371 ΔE 0.030
- Medium Green #39AD48 ΔE 0.031
Use #57B057 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.