#57C255
Closest named color: Algae Green (#21C36F). oklch(72.7% 0.178 143.2), rgb(87, 194, 85).
Aa
Black text reads best on this color (9.25:1).
About this color
#57C255 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.178 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.033 away. Black text reads best on it, at 9.25:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.25:1 |
| White text | 2.26:1 |
Values
| HEX | #57C255 |
| RGB | rgb(87, 194, 85) |
| HSL | hsl(119, 47%, 55%) |
| OKLCH | oklch(72.7% 0.178 143.2) |
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 #57C255 | 2.26:1 | Fails | Lc -49.2 | Large or bold text, headings |
| Black text on #57C255 | 9.25:1 | AAA | Lc 59.5 | Large or bold text, headings |
| #57C255 text on white | 2.26:1 | Fails | Lc 44.4 | Non-text elements, placeholder text |
| #57C255 text on black | 9.25:1 | AAA | Lc -57.7 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DC
oklch(93.6% 0.033 142.5)
-
Step 200
200
#C2E4BF
oklch(88.4% 0.062 142.9)
-
Step 300
300
#95D391
oklch(80.8% 0.111 143)
-
Step 400
400 (this color)
#57C255
oklch(72.7% 0.178 143.2)
-
Step 500
500
#00A714
oklch(63.2% 0.21 143.2)
-
Step 600
600
#008C0F
oklch(55.5% 0.185 143.2)
-
Step 700
700
#00760B
oklch(49.1% 0.163 143.2)
-
Step 800
800
#006107
oklch(42.7% 0.142 143.1)
-
Step 900
900
#005105
oklch(37.7% 0.126 143.2)
-
Step 950
950
#003102
oklch(27.2% 0.09 143.2)
#57C255 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) | #C6B24A | 0.130 |
| Deuteranopia (no green cones) | #B8A85D | 0.130 |
| Tritanopia (no blue cones) | #46BDAA | 0.113 |
| Achromatopsia (no color) | #ACACAC | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57C255
#57C255
oklch(72.7% 0.178 143.2)
- #DB7BE6
#DB7BE6
oklch(72.6% 0.179 323.3)
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 #57C255, closest first.
No curated palette has a color within ΔE 0.04 of #57C255.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.033
- Dark Mint #48C072 ΔE 0.034
- Turtle Green #75B84F ΔE 0.034
- Leafy Green #51B73B ΔE 0.036
- Shamrock Green #02C14D ΔE 0.037
- Dark Mint Green #20C073 ΔE 0.041
- Apple #6ECB3C ΔE 0.041
- Cool Green #33B864 ΔE 0.044
Use #57C255 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.