#57B224
Closest named color: Leafy Green (#51B73B). oklch(68.1% 0.192 137.2), rgb(87, 178, 36).
Aa
Black text reads best on this color (7.79:1).
About this color
#57B224 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.192 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.017 away. Black text reads best on it, at 7.79:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.192) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.79:1 |
| White text | 2.69:1 |
Values
| HEX | #57B224 |
| RGB | rgb(87, 178, 36) |
| HSL | hsl(98, 66%, 42%) |
| OKLCH | oklch(68.1% 0.192 137.2) |
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 #57B224 | 2.69:1 | Fails | Lc -57.1 | Large or bold text, headings |
| Black text on #57B224 | 7.79:1 | AAA | Lc 52.1 | Large or bold text, headings |
| #57B224 text on white | 2.69:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #57B224 text on black | 7.79:1 | AAA | Lc -50.0 | 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
#DFF0D9
oklch(93.6% 0.035 137.5)
-
Step 200
200
#C5E4B9
oklch(88.5% 0.066 137)
-
Step 300
300
#9BD385
oklch(80.9% 0.12 137.2)
-
Step 400
400 (this color)
#57B224
oklch(68.1% 0.192 137.2)
-
Step 500
500
#47A200
oklch(63.1% 0.192 137.2)
-
Step 600
600
#3A8800
oklch(55.5% 0.169 137.3)
-
Step 700
700
#307300
oklch(49.2% 0.15 137.3)
-
Step 800
800
#265E00
oklch(42.7% 0.13 137.2)
-
Step 900
900
#1F4E00
oklch(37.6% 0.114 137)
-
Step 950
950
#0F2F00
oklch(27% 0.083 137.4)
#57B224 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) | #B8A200 | 0.121 |
| Deuteranopia (no green cones) | #AC9B35 | 0.121 |
| Tritanopia (no blue cones) | #51AB98 | 0.136 |
| Achromatopsia (no color) | #9E9E9E | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B224
#57B224
oklch(68.1% 0.192 137.2)
- #C76CE5
#C76CE5
oklch(68.1% 0.192 317.2)
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 #57B224, closest first.
No curated palette has a color within ΔE 0.04 of #57B224.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.017
- Grass #5CAC2D ΔE 0.019
- Leaf Green #5CA904 ΔE 0.025
- Frog Green #58BC08 ΔE 0.032
- Leaf #71AA34 ΔE 0.037
- Medium Green #39AD48 ΔE 0.037
- Shamrock #01B44C ΔE 0.039
- Kelly Green #02AB2E ΔE 0.047
Use #57B224 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.