#55BB57
Closest named color: Leafy Green (#51B73B). oklch(70.8% 0.168 143.9), rgb(85, 187, 87).
Aa
Black text reads best on this color (8.63:1).
About this color
#55BB57 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.168 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.027 away. Black text reads best on it, at 8.63:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.63:1 |
| White text | 2.43:1 |
Values
| HEX | #55BB57 |
| RGB | rgb(85, 187, 87) |
| HSL | hsl(121, 43%, 53%) |
| OKLCH | oklch(70.8% 0.168 143.9) |
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 #55BB57 | 2.43:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #55BB57 | 8.63:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #55BB57 text on white | 2.43:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #55BB57 text on black | 8.63:1 | AAA | Lc -54.4 | 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
#DEF0DD
oklch(93.7% 0.032 143.9)
-
Step 200
200
#C3E4C1
oklch(88.6% 0.059 143.5)
-
Step 300
300
#97D395
oklch(81% 0.106 143.8)
-
Step 400
400 (this color)
#55BB57
oklch(70.8% 0.168 143.9)
-
Step 500
500
#00A720
oklch(63.2% 0.206 143.9)
-
Step 600
600
#008C19
oklch(55.6% 0.181 143.9)
-
Step 700
700
#007614
oklch(49.1% 0.16 143.9)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#00510A
oklch(37.7% 0.123 143.9)
-
Step 950
950
#003004
oklch(26.8% 0.087 144)
#55BB57 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) | #BEAC4E | 0.124 |
| Deuteranopia (no green cones) | #B1A35E | 0.123 |
| Tritanopia (no blue cones) | #45B6A4 | 0.105 |
| Achromatopsia (no color) | #A6A6A6 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55BB57
#55BB57
oklch(70.8% 0.168 143.9)
- #D379DC
#D379DC
oklch(70.9% 0.168 323.8)
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 #55BB57, closest first.
No curated palette has a color within ΔE 0.04 of #55BB57.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.027
- Cool Green #33B864 ΔE 0.027
- Turtle Green #75B84F ΔE 0.027
- Dark Mint #48C072 ΔE 0.029
- Algae Green #21C36F ΔE 0.032
- Dark Mint Green #20C073 ΔE 0.034
- Boring Green #63B365 ΔE 0.034
- Dark Pastel Green #56AE57 ΔE 0.038
Use #55BB57 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.