#57B563
Closest named color: Boring Green (#63B365). oklch(69.6% 0.148 146.4), rgb(87, 181, 99).
Aa
Black text reads best on this color (8.19:1).
About this color
#57B563 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.148 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.012 away. Black text reads best on it, at 8.19:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.19:1 |
| White text | 2.56:1 |
Values
| HEX | #57B563 |
| RGB | rgb(87, 181, 99) |
| HSL | hsl(128, 39%, 53%) |
| OKLCH | oklch(69.6% 0.148 146.4) |
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 #57B563 | 2.56:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #57B563 | 8.19:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #57B563 text on white | 2.56:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #57B563 text on black | 8.19:1 | AAA | Lc -52.0 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C4E3C6
oklch(88.5% 0.051 146.9)
-
Step 300
300
#9AD19D
oklch(80.9% 0.092 146)
-
Step 400
400 (this color)
#57B563
oklch(69.6% 0.148 146.4)
-
Step 500
500
#08A639
oklch(63.2% 0.189 146.4)
-
Step 600
600
#008C2D
oklch(55.7% 0.169 146.3)
-
Step 700
700
#007525
oklch(49% 0.148 146.5)
-
Step 800
800
#00601D
oklch(42.6% 0.128 146.5)
-
Step 900
900
#005017
oklch(37.6% 0.113 146.6)
-
Step 950
950
#03300C
oklch(27.1% 0.078 146.3)
#57B563 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) | #B7A75D | 0.115 |
| Deuteranopia (no green cones) | #AA9E68 | 0.114 |
| Tritanopia (no blue cones) | #46B1A1 | 0.088 |
| Achromatopsia (no color) | #A2A2A2 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B563
#57B563
oklch(69.6% 0.148 146.4)
- #CC7ACD
#CC7ACD
oklch(69.6% 0.147 326.6)
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 #57B563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.012
- Dark Pastel Green #56AE57 ΔE 0.021
- Cool Green #33B864 ΔE 0.023
- Medium Sea Green #3CB371 ΔE 0.025
- Algae #54AC68 ΔE 0.029
- Dark Mint #48C072 ΔE 0.030
- Fern #63A950 ΔE 0.034
- Turtle Green #75B84F ΔE 0.035
Use #57B563 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.