#55AF71
Closest named color: Algae (#54AC68). oklch(68.2% 0.126 151.8), rgb(85, 175, 113).
Aa
Black text reads best on this color (7.75:1).
About this color
#55AF71 is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.126 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.013 away. Black text reads best on it, at 7.75:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #55AF71 |
| RGB | rgb(85, 175, 113) |
| HSL | hsl(139, 36%, 51%) |
| OKLCH | oklch(68.2% 0.126 151.8) |
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 #55AF71 | 2.70:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #55AF71 | 7.75:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #55AF71 text on white | 2.70:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #55AF71 text on black | 7.75:1 | AAA | Lc -49.6 | 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
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C5E2CB
oklch(88.5% 0.044 151.5)
-
Step 300
300
#9BD0A8
oklch(81% 0.079 151.9)
-
Step 400
400 (this color)
#55AF71
oklch(68.2% 0.126 151.8)
-
Step 500
500
#15A455
oklch(63.1% 0.161 151.8)
-
Step 600
600
#008A45
oklch(55.5% 0.146 152)
-
Step 700
700
#007539
oklch(49.2% 0.13 151.8)
-
Step 800
800
#00602D
oklch(42.8% 0.114 151.6)
-
Step 900
900
#005025
oklch(37.8% 0.1 151.8)
-
Step 950
950
#042F15
oklch(26.9% 0.066 152)
#55AF71 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) | #AFA36D | 0.108 |
| Deuteranopia (no green cones) | #A39A75 | 0.106 |
| Tritanopia (no blue cones) | #40AD9F | 0.066 |
| Achromatopsia (no color) | #9D9D9D | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55AF71
#55AF71
oklch(68.2% 0.126 151.8)
- #C67ABC
#C67ABC
oklch(68.2% 0.127 331.7)
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 #55AF71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.013
- Dark Seafoam Green #3EAF76 ΔE 0.016
- Medium Sea Green #3CB371 ΔE 0.019
- Boring Green #63B365 ΔE 0.024
- Bluey Green #2BB179 ΔE 0.024
- Seaweed Green #35AD6B ΔE 0.026
- Tea #65AB7C ΔE 0.027
- Dark Seafoam #1FB57A ΔE 0.029
Use #55AF71 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.