#57B239
Closest named color: Leafy Green (#51B73B). oklch(68.3% 0.18 139), rgb(87, 178, 57).
Aa
Black text reads best on this color (7.83:1).
About this color
#57B239 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.180 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.014 away. Black text reads best on it, at 7.83:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.83:1 |
| White text | 2.68:1 |
Values
| HEX | #57B239 |
| RGB | rgb(87, 178, 57) |
| HSL | hsl(105, 51%, 46%) |
| OKLCH | oklch(68.3% 0.18 139) |
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 #57B239 | 2.68:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #57B239 | 7.83:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #57B239 text on white | 2.68:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #57B239 text on black | 7.83:1 | AAA | Lc -50.1 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#DFF0DB
oklch(93.7% 0.033 139.7)
-
Step 200
200
#C5E4BC
oklch(88.6% 0.063 138.7)
-
Step 300
300
#9BD28C
oklch(80.8% 0.111 139.1)
-
Step 400
400 (this color)
#57B239
oklch(68.3% 0.18 139)
-
Step 500
500
#3BA400
oklch(63.2% 0.199 139)
-
Step 600
600
#308A00
oklch(55.7% 0.176 139)
-
Step 700
700
#277400
oklch(49.2% 0.155 139)
-
Step 800
800
#1F5F00
oklch(42.7% 0.134 138.9)
-
Step 900
900
#184F00
oklch(37.6% 0.119 139)
-
Step 950
950
#0B2F00
oklch(26.9% 0.085 139)
#57B239 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) | #B7A328 | 0.118 |
| Deuteranopia (no green cones) | #AB9B44 | 0.119 |
| Tritanopia (no blue cones) | #4FAC99 | 0.122 |
| Achromatopsia (no color) | #9E9E9E | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B239
#57B239
oklch(68.3% 0.18 139)
- #C76FDE
#C76FDE
oklch(68.2% 0.18 319)
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 #57B239, closest first.
No curated palette has a color within ΔE 0.04 of #57B239.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.014
- Grass #5CAC2D ΔE 0.016
- Leaf Green #5CA904 ΔE 0.030
- Medium Green #39AD48 ΔE 0.030
- Leaf #71AA34 ΔE 0.030
- Dark Pastel Green #56AE57 ΔE 0.034
- Shamrock #01B44C ΔE 0.035
- Mid Green #50A747 ΔE 0.038
Use #57B239 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.