#57AC40
Closest named color: Grass (#5CAC2D). oklch(66.8% 0.167 139.5), rgb(87, 172, 64).
Aa
Black text reads best on this color (7.38:1).
About this color
#57AC40 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.167 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.014 away. Black text reads best on it, at 7.38:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.38:1 |
| White text | 2.84:1 |
Values
| HEX | #57AC40 |
| RGB | rgb(87, 172, 64) |
| HSL | hsl(107, 46%, 46%) |
| OKLCH | oklch(66.8% 0.167 139.5) |
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 #57AC40 | 2.84:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #57AC40 | 7.38:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #57AC40 text on white | 2.84:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #57AC40 text on black | 7.38:1 | AAA | Lc -47.6 | 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 500.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CAE1C5
oklch(88.5% 0.045 140.1)
-
Step 300
300
#A6CE9C
oklch(81% 0.081 139.4)
-
Step 400
400
#73B463
oklch(70.7% 0.131 139.6)
-
Step 500
500 (this color)
#57AC40
oklch(66.8% 0.167 139.5)
-
Step 600
600
#2C8A00
oklch(55.6% 0.177 139.5)
-
Step 700
700
#247400
oklch(49.1% 0.156 139.5)
-
Step 800
800
#1C5F00
oklch(42.6% 0.136 139.5)
-
Step 900
900
#1C4E0D
oklch(37.5% 0.108 139.7)
-
Step 950
950
#122E0A
oklch(27% 0.069 139.4)
#57AC40 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) | #B19E33 | 0.112 |
| Deuteranopia (no green cones) | #A59649 | 0.113 |
| Tritanopia (no blue cones) | #4FA795 | 0.112 |
| Achromatopsia (no color) | #999999 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57AC40
#57AC40
oklch(66.8% 0.167 139.5)
- #C06ED4
#C06ED4
oklch(66.7% 0.168 319.5)
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 #57AC40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.014
- Mid Green #50A747 ΔE 0.019
- Medium Green #39AD48 ΔE 0.020
- Dark Pastel Green #56AE57 ΔE 0.022
- Leaf #71AA34 ΔE 0.024
- Fern #63A950 ΔE 0.024
- Leaf Green #5CA904 ΔE 0.029
- Leafy Green #51B73B ΔE 0.033
Use #57AC40 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.