#55B243
Closest named color: Leafy Green (#51B73B). oklch(68.3% 0.173 140.6), rgb(85, 178, 67).
Aa
Black text reads best on this color (7.83:1).
About this color
#55B243 is a medium-light, vivid green. In OKLCH its lightness is 68%, its chroma 0.173 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.018 away. Black text reads best on it, at 7.83:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 7.83:1 |
| White text | 2.68:1 |
Values
| HEX | #55B243 |
| RGB | rgb(85, 178, 67) |
| HSL | hsl(110, 45%, 48%) |
| OKLCH | oklch(68.3% 0.173 140.6) |
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 #55B243 | 2.68:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #55B243 | 7.83:1 | AAA | Lc 52.3 | Large or bold text, headings |
| #55B243 text on white | 2.68:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #55B243 text on black | 7.83:1 | AAA | Lc -50.1 | 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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DFEFDC
oklch(93.5% 0.03 140.8)
-
Step 200
200
#C4E4BE
oklch(88.6% 0.061 140.7)
-
Step 300
300
#9AD290
oklch(80.8% 0.108 140.8)
-
Step 400
400 (this color)
#55B243
oklch(68.3% 0.173 140.6)
-
Step 500
500
#2BA500
oklch(63.1% 0.206 140.6)
-
Step 600
600
#238B00
oklch(55.6% 0.181 140.6)
-
Step 700
700
#1C7500
oklch(49.2% 0.16 140.5)
-
Step 800
800
#156000
oklch(42.7% 0.139 140.6)
-
Step 900
900
#105000
oklch(37.7% 0.123 140.6)
-
Step 950
950
#063000
oklch(27% 0.088 140.7)
#55B243 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) | #B7A336 | 0.120 |
| Deuteranopia (no green cones) | #AA9B4C | 0.119 |
| Tritanopia (no blue cones) | #4BAD9A | 0.114 |
| Achromatopsia (no color) | #9E9E9E | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55B243
#55B243
oklch(68.3% 0.173 140.6)
- #C871DA
#C871DA
oklch(68.4% 0.173 320.6)
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 #55B243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.018
- Grass #5CAC2D ΔE 0.020
- Dark Pastel Green #56AE57 ΔE 0.026
- Medium Green #39AD48 ΔE 0.027
- Leaf #71AA34 ΔE 0.030
- Shamrock #01B44C ΔE 0.033
- Cool Green #33B864 ΔE 0.034
- Mid Green #50A747 ΔE 0.034
Use #55B243 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.