#57CA6B
Closest named color: Seaweed (#18D17B). oklch(75% 0.169 147.1), rgb(87, 202, 107).
Aa
Black text reads best on this color (10.06:1).
About this color
#57CA6B is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.169 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.029 away. Black text reads best on it, at 10.06:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.06:1 |
| White text | 2.08:1 |
Values
| HEX | #57CA6B |
| RGB | rgb(87, 202, 107) |
| HSL | hsl(130, 52%, 57%) |
| OKLCH | oklch(75% 0.169 147.1) |
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 #57CA6B | 2.08:1 | Fails | Lc -45.0 | Large or bold text, headings |
| Black text on #57CA6B | 10.06:1 | AAA | Lc 63.5 | Content text, not long reading |
| #57CA6B text on white | 2.08:1 | Fails | Lc 40.5 | Non-text elements, placeholder text |
| #57CA6B text on black | 10.06:1 | AAA | Lc -61.8 | Content text, not long reading |
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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DDF0DE
oklch(93.6% 0.031 146.8)
-
Step 200
200
#C0E4C3
oklch(88.4% 0.059 147.3)
-
Step 300
300
#92D499
oklch(81% 0.106 147.2)
-
Step 400
400 (this color)
#57CA6B
oklch(75% 0.169 147.1)
-
Step 500
500
#00A63C
oklch(63.2% 0.188 147.1)
-
Step 600
600
#008B31
oklch(55.5% 0.165 147.1)
-
Step 700
700
#007528
oklch(49% 0.145 147.1)
-
Step 800
800
#006020
oklch(42.6% 0.126 147.3)
-
Step 900
900
#005019
oklch(37.6% 0.111 147.2)
-
Step 950
950
#00300C
oklch(26.9% 0.079 147.3)
#57CA6B 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) | #CCBA63 | 0.133 |
| Deuteranopia (no green cones) | #BDAF71 | 0.133 |
| Tritanopia (no blue cones) | #3EC6B3 | 0.098 |
| Achromatopsia (no color) | #B3B3B3 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57CA6B
#57CA6B
oklch(75% 0.169 147.1)
- #E584E5
#E584E5
oklch(75% 0.169 327.1)
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 #57CA6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.029
- Dark Mint #48C072 ΔE 0.035
- Soft Green #6FC276 ΔE 0.035
- Algae Green #21C36F ΔE 0.037
- Apple #6ECB3C ΔE 0.044
- Dark Mint Green #20C073 ΔE 0.045
- Turtle Green #75B84F ΔE 0.050
- Greenblue #23C48B ΔE 0.052
Use #57CA6B 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.