#57B457
Closest named color: Dark Pastel Green (#56AE57). oklch(69.1% 0.158 143.6), rgb(87, 180, 87).
Aa
Black text reads best on this color (8.07:1).
About this color
#57B457 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.158 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 0.018 away. Black text reads best on it, at 8.07:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 8.07:1 |
| White text | 2.60:1 |
Values
| HEX | #57B457 |
| RGB | rgb(87, 180, 87) |
| HSL | hsl(120, 38%, 52%) |
| OKLCH | oklch(69.1% 0.158 143.6) |
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 #57B457 | 2.60:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #57B457 | 8.07:1 | AAA | Lc 53.5 | Large or bold text, headings |
| #57B457 text on white | 2.60:1 | Fails | Lc 50.5 | Large or bold text, headings |
| #57B457 text on black | 8.07:1 | AAA | Lc -51.4 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C4E3C3
oklch(88.5% 0.054 144.3)
-
Step 300
300
#9AD298
oklch(81% 0.099 143.8)
-
Step 400
400 (this color)
#57B457
oklch(69.1% 0.158 143.6)
-
Step 500
500
#12A623
oklch(63.1% 0.201 143.7)
-
Step 600
600
#008C16
oklch(55.5% 0.182 143.6)
-
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
#005108
oklch(37.7% 0.124 143.6)
-
Step 950
950
#043006
oklch(27% 0.083 143.5)
#57B457 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) | #B7A64F | 0.116 |
| Deuteranopia (no green cones) | #AB9D5E | 0.117 |
| Tritanopia (no blue cones) | #4AB09F | 0.099 |
| Achromatopsia (no color) | #A0A0A0 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B457
#57B457
oklch(69.1% 0.158 143.6)
- #CA77D3
#CA77D3
oklch(69.2% 0.157 323.5)
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 #57B457, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.018
- Boring Green #63B365 ΔE 0.022
- Cool Green #33B864 ΔE 0.023
- Fern #63A950 ΔE 0.030
- Leafy Green #51B73B ΔE 0.031
- Turtle Green #75B84F ΔE 0.032
- Medium Sea Green #3CB371 ΔE 0.034
- Algae #54AC68 ΔE 0.035
Use #57B457 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.