#57B033
Closest named color: Grass (#5CAC2D). oklch(67.7% 0.181 138.2), rgb(87, 176, 51).
Aa
Black text reads best on this color (7.66:1).
About this color
#57B033 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.181 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.011 away. Black text reads best on it, at 7.66:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.66:1 |
| White text | 2.74:1 |
Values
| HEX | #57B033 |
| RGB | rgb(87, 176, 51) |
| HSL | hsl(103, 55%, 45%) |
| OKLCH | oklch(67.7% 0.181 138.2) |
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 #57B033 | 2.74:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #57B033 | 7.66:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #57B033 text on white | 2.74:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #57B033 text on black | 7.66:1 | AAA | Lc -49.2 | 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
#DFF0DA
oklch(93.7% 0.034 138.6)
-
Step 200
200
#C5E4BC
oklch(88.6% 0.063 138.7)
-
Step 300
300
#9CD28A
oklch(80.8% 0.113 138.1)
-
Step 400
400 (this color)
#57B033
oklch(67.7% 0.181 138.2)
-
Step 500
500
#40A300
oklch(63.1% 0.196 138.3)
-
Step 600
600
#358900
oklch(55.6% 0.173 138.2)
-
Step 700
700
#2B7300
oklch(49% 0.152 138.2)
-
Step 800
800
#225F00
oklch(42.8% 0.133 138.3)
-
Step 900
900
#1B4F00
oklch(37.7% 0.117 138.3)
-
Step 950
950
#0D2F00
oklch(26.9% 0.084 138.2)
#57B033 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) | #B5A11F | 0.116 |
| Deuteranopia (no green cones) | #AA993F | 0.119 |
| Tritanopia (no blue cones) | #50AA97 | 0.125 |
| Achromatopsia (no color) | #9C9C9C | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B033
#57B033
oklch(67.7% 0.181 138.2)
- #C56DDE
#C56DDE
oklch(67.7% 0.182 318.4)
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 #57B033, closest first.
No curated palette has a color within ΔE 0.04 of #57B033.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.011
- Leafy Green #51B73B ΔE 0.019
- Leaf Green #5CA904 ΔE 0.023
- Medium Green #39AD48 ΔE 0.028
- Leaf #71AA34 ΔE 0.029
- Dark Pastel Green #56AE57 ΔE 0.035
- Mid Green #50A747 ΔE 0.035
- Shamrock #01B44C ΔE 0.036
Use #57B033 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.