#55C55B
Closest named color: Algae Green (#21C36F). oklch(73.5% 0.178 144.4), rgb(85, 197, 91).
Aa
Black text reads best on this color (9.52:1).
About this color
#55C55B is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.178 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.032 away. Black text reads best on it, at 9.52:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 9.52:1 |
| White text | 2.20:1 |
Values
| HEX | #55C55B |
| RGB | rgb(85, 197, 91) |
| HSL | hsl(123, 49%, 55%) |
| OKLCH | oklch(73.5% 0.178 144.4) |
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 #55C55B | 2.20:1 | Fails | Lc -47.8 | Large or bold text, headings |
| Black text on #55C55B | 9.52:1 | AAA | Lc 60.9 | Content text, not long reading |
| #55C55B text on white | 2.20:1 | Fails | Lc 43.1 | Non-text elements, placeholder text |
| #55C55B text on black | 9.52:1 | AAA | Lc -59.1 | 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
#DDF0DD
oklch(93.6% 0.032 145.3)
-
Step 200
200
#C1E4C0
oklch(88.4% 0.061 144.3)
-
Step 300
300
#93D493
oklch(81% 0.112 144.5)
-
Step 400
400 (this color)
#55C55B
oklch(73.5% 0.178 144.4)
-
Step 500
500
#00A627
oklch(63% 0.201 144.5)
-
Step 600
600
#008C1F
oklch(55.6% 0.178 144.4)
-
Step 700
700
#007618
oklch(49.1% 0.157 144.4)
-
Step 800
800
#006112
oklch(42.8% 0.137 144.4)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#003005
oklch(26.9% 0.086 144.4)
#55C55B 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) | #C8B551 | 0.132 |
| Deuteranopia (no green cones) | #BAAB63 | 0.132 |
| Tritanopia (no blue cones) | #41C0AD | 0.110 |
| Achromatopsia (no color) | #AFAFAF | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55C55B
#55C55B
oklch(73.5% 0.178 144.4)
- #DF7DE7
#DF7DE7
oklch(73.4% 0.179 324.4)
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 #55C55B, closest first.
No curated palette has a color within ΔE 0.04 of #55C55B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.032
- Dark Mint #48C072 ΔE 0.034
- Apple #6ECB3C ΔE 0.039
- Turtle Green #75B84F ΔE 0.040
- Shamrock Green #02C14D ΔE 0.040
- Dark Mint Green #20C073 ΔE 0.041
- Seaweed #18D17B ΔE 0.041
- Soft Green #6FC276 ΔE 0.044
Use #55C55B 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.