#57CB67
Closest named color: Seaweed (#18D17B). oklch(75.2% 0.174 146.2), rgb(87, 203, 103).
Aa
Black text reads best on this color (10.14:1).
About this color
#57CB67 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.174 and its hue 146°. 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 10.14:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.14:1 |
| White text | 2.07:1 |
Values
| HEX | #57CB67 |
| RGB | rgb(87, 203, 103) |
| HSL | hsl(128, 53%, 57%) |
| OKLCH | oklch(75.2% 0.174 146.2) |
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 #57CB67 | 2.07:1 | Fails | Lc -44.6 | Non-text elements, placeholder text |
| Black text on #57CB67 | 10.14:1 | AAA | Lc 63.8 | Content text, not long reading |
| #57CB67 text on white | 2.07:1 | Fails | Lc 40.1 | Non-text elements, placeholder text |
| #57CB67 text on black | 10.14:1 | AAA | Lc -62.2 | 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
#C0E5C2
oklch(88.6% 0.061 146.5)
-
Step 300
300
#92D496
oklch(81% 0.109 145.9)
-
Step 400
400 (this color)
#57CB67
oklch(75.2% 0.174 146.2)
-
Step 500
500
#00A636
oklch(63.1% 0.192 146.2)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007624
oklch(49.2% 0.15 146.2)
-
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)
#57CB67 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) | #CEBA5F | 0.136 |
| Deuteranopia (no green cones) | #BFB06E | 0.135 |
| Tritanopia (no blue cones) | #3FC7B4 | 0.104 |
| Achromatopsia (no color) | #B4B4B4 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57CB67
#57CB67
oklch(75.2% 0.174 146.2)
- #E683E9
#E683E9
oklch(75.2% 0.175 326.1)
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 #57CB67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.029
- Apple #6ECB3C ΔE 0.038
- Algae Green #21C36F ΔE 0.039
- Dark Mint #48C072 ΔE 0.040
- Soft Green #6FC276 ΔE 0.041
- Dark Mint Green #20C073 ΔE 0.048
- Fresh Green #69D84F ΔE 0.050
- Turtle Green #75B84F ΔE 0.052
Use #57CB67 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.