#57D39B
Closest named color: Emerald (#06D6A0). oklch(78.2% 0.138 161), rgb(87, 211, 155).
Aa
Black text reads best on this color (11.19:1).
About this color
#57D39B is a light, moderately saturated green. In OKLCH its lightness is 78%, its chroma 0.138 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.026 away. Black text reads best on it, at 11.19:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 11.19:1 |
| White text | 1.87:1 |
Values
| HEX | #57D39B |
| RGB | rgb(87, 211, 155) |
| HSL | hsl(153, 58%, 58%) |
| OKLCH | oklch(78.2% 0.138 161) |
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 #57D39B | 1.87:1 | Fails | Lc -39.4 | Non-text elements, placeholder text |
| Black text on #57D39B | 11.19:1 | AAA | Lc 68.7 | Content text, not long reading |
| #57D39B text on white | 1.87:1 | Fails | Lc 35.2 | Non-text elements, placeholder text |
| #57D39B text on black | 11.19:1 | AAA | Lc -67.3 | 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
#EBFAF1
oklch(97.2% 0.02 159.8)
-
Step 100
100
#D4F3E1
oklch(93.7% 0.04 160.1)
-
Step 200
200
#ACE9C9
oklch(88.4% 0.076 161.5)
-
Step 300
300 (this color)
#57D39B
oklch(78.2% 0.138 161)
-
Step 400
400
#00BE80
oklch(70.8% 0.158 161)
-
Step 500
500
#00A36D
oklch(63.2% 0.141 160.9)
-
Step 600
600
#00895B
oklch(55.6% 0.124 161)
-
Step 700
700
#00734C
oklch(49.1% 0.109 161.2)
-
Step 800
800
#005E3D
oklch(42.6% 0.095 160.9)
-
Step 900
900
#004F33
oklch(37.8% 0.084 161.3)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#57D39B 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) | #D0C598 | 0.131 |
| Deuteranopia (no green cones) | #BFB89F | 0.128 |
| Tritanopia (no blue cones) | #1BD2C4 | 0.059 |
| Achromatopsia (no color) | #BDBDBD | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57D39B
#57D39B
oklch(78.2% 0.138 161)
- #F393D2
#F393D2
oklch(78.2% 0.138 341.1)
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 #57D39B, closest first.
No curated palette has a color within ΔE 0.04 of #57D39B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.026
- Medium Aquamarine #66CDAA ΔE 0.033
- Aqua Green #12E193 ΔE 0.049
- Seafoam Blue #78D1B6 ΔE 0.051
- Seaweed #18D17B ΔE 0.054
- Soft Green #6FC276 ΔE 0.054
- Greenblue #23C48B ΔE 0.055
- Pale Teal #82CBB2 ΔE 0.059
Use #57D39B 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.