#57C661
Closest named color: Dark Mint (#48C072). oklch(73.9% 0.173 145.2), rgb(87, 198, 97).
Aa
Black text reads best on this color (9.65:1).
About this color
#57C661 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.173 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.031 away. Black text reads best on it, at 9.65:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.65:1 |
| White text | 2.17:1 |
Values
| HEX | #57C661 |
| RGB | rgb(87, 198, 97) |
| HSL | hsl(125, 49%, 56%) |
| OKLCH | oklch(73.9% 0.173 145.2) |
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 #57C661 | 2.17:1 | Fails | Lc -47.2 | Large or bold text, headings |
| Black text on #57C661 | 9.65:1 | AAA | Lc 61.5 | Content text, not long reading |
| #57C661 text on white | 2.17:1 | Fails | Lc 42.4 | Non-text elements, placeholder text |
| #57C661 text on black | 9.65:1 | AAA | Lc -59.8 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C1E4C1
oklch(88.4% 0.06 145)
-
Step 300
300
#93D395
oklch(80.8% 0.108 145.2)
-
Step 400
400 (this color)
#57C661
oklch(73.9% 0.173 145.2)
-
Step 500
500
#00A62E
oklch(63% 0.197 145.2)
-
Step 600
600
#008C26
oklch(55.6% 0.174 145.3)
-
Step 700
700
#00761E
oklch(49.2% 0.154 145.2)
-
Step 800
800
#006117
oklch(42.8% 0.134 145.2)
-
Step 900
900
#005112
oklch(37.8% 0.118 145.3)
-
Step 950
950
#003007
oklch(26.9% 0.084 145.2)
#57C661 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) | #C9B658 | 0.132 |
| Deuteranopia (no green cones) | #BAAC68 | 0.130 |
| Tritanopia (no blue cones) | #42C1AF | 0.106 |
| Achromatopsia (no color) | #B0B0B0 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57C661
#57C661
oklch(73.9% 0.173 145.2)
- #E080E5
#E080E5
oklch(73.9% 0.173 325.3)
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 #57C661, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.031
- Algae Green #21C36F ΔE 0.032
- Seaweed #18D17B ΔE 0.037
- Soft Green #6FC276 ΔE 0.038
- Dark Mint Green #20C073 ΔE 0.040
- Apple #6ECB3C ΔE 0.041
- Turtle Green #75B84F ΔE 0.041
- Shamrock Green #02C14D ΔE 0.046
Use #57C661 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.