#57C666
Closest named color: Dark Mint (#48C072). oklch(73.9% 0.169 146.2), rgb(87, 198, 102).
Aa
Black text reads best on this color (9.67:1).
About this color
#57C666 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.169 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.027 away. Black text reads best on it, at 9.67:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.169) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.67:1 |
| White text | 2.17:1 |
Values
| HEX | #57C666 |
| RGB | rgb(87, 198, 102) |
| HSL | hsl(128, 49%, 56%) |
| OKLCH | oklch(73.9% 0.169 146.2) |
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 #57C666 | 2.17:1 | Fails | Lc -47.1 | Large or bold text, headings |
| Black text on #57C666 | 9.67:1 | AAA | Lc 61.6 | Content text, not long reading |
| #57C666 text on white | 2.17:1 | Fails | Lc 42.4 | Non-text elements, placeholder text |
| #57C666 text on black | 9.67:1 | 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
#DDF0DE
oklch(93.6% 0.031 146.8)
-
Step 200
200
#C1E4C3
oklch(88.5% 0.058 146.6)
-
Step 300
300
#93D398
oklch(80.8% 0.105 146.4)
-
Step 400
400 (this color)
#57C666
oklch(73.9% 0.169 146.2)
-
Step 500
500
#00A637
oklch(63.1% 0.191 146.3)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007524
oklch(49% 0.148 146.3)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#00300A
oklch(26.9% 0.081 146.4)
#57C666 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) | #C9B65E | 0.132 |
| Deuteranopia (no green cones) | #BAAC6D | 0.130 |
| Tritanopia (no blue cones) | #41C2AF | 0.100 |
| Achromatopsia (no color) | #B0B0B0 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57C666
#57C666
oklch(73.9% 0.169 146.2)
- #E081E3
#E081E3
oklch(73.9% 0.169 326)
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 #57C666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.027
- Algae Green #21C36F ΔE 0.030
- Soft Green #6FC276 ΔE 0.034
- Seaweed #18D17B ΔE 0.036
- Dark Mint Green #20C073 ΔE 0.038
- Turtle Green #75B84F ΔE 0.041
- Apple #6ECB3C ΔE 0.045
- Shamrock Green #02C14D ΔE 0.049
Use #57C666 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.