#57D38B
Closest named color: Emerald (#06D6A0). oklch(77.9% 0.152 154.9), rgb(87, 211, 139).
Aa
Black text reads best on this color (11.09:1).
About this color
#57D38B is a medium-light, vivid green. In OKLCH its lightness is 78%, its chroma 0.152 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.032 away. Black text reads best on it, at 11.09:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.09:1 |
| White text | 1.89:1 |
Values
| HEX | #57D38B |
| RGB | rgb(87, 211, 139) |
| HSL | hsl(145, 58%, 58%) |
| OKLCH | oklch(77.9% 0.152 154.9) |
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 #57D38B | 1.89:1 | Fails | Lc -39.9 | Non-text elements, placeholder text |
| Black text on #57D38B | 11.09:1 | AAA | Lc 68.2 | Content text, not long reading |
| #57D38B text on white | 1.89:1 | Fails | Lc 35.7 | Non-text elements, placeholder text |
| #57D38B text on black | 11.09:1 | AAA | Lc -66.8 | 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 300.
-
Step 50
50
#EBFAF0
oklch(97.1% 0.021 156.8)
-
Step 100
100
#D4F3DD
oklch(93.6% 0.044 154.6)
-
Step 200
200
#ADEAC1
oklch(88.5% 0.084 154.9)
-
Step 300
300 (this color)
#57D38B
oklch(77.9% 0.152 154.9)
-
Step 400
400
#00BF6E
oklch(70.7% 0.175 155)
-
Step 500
500
#00A45D
oklch(63.1% 0.157 154.8)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#57D38B 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) | #D2C386 | 0.135 |
| Deuteranopia (no green cones) | #C2B890 | 0.133 |
| Tritanopia (no blue cones) | #2AD1C0 | 0.074 |
| Achromatopsia (no color) | #BCBCBC | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57D38B
#57D38B
oklch(77.9% 0.152 154.9)
- #F28FDD
#F28FDD
oklch(77.8% 0.153 335.2)
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 #57D38B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.032
- Seaweed #18D17B ΔE 0.037
- Aqua Green #12E193 ΔE 0.041
- Soft Green #6FC276 ΔE 0.046
- Medium Aquamarine #66CDAA ΔE 0.053
- Greenblue #23C48B ΔE 0.054
- Weird Green #3AE57F ΔE 0.058
- Dark Mint #48C072 ΔE 0.058
Use #57D38B 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.