#55AE75
Closest named color: Dark Seafoam Green (#3EAF76). oklch(68.1% 0.121 153.6), rgb(85, 174, 117).
Aa
Black text reads best on this color (7.69:1).
About this color
#55AE75 is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.121 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam Green (#3EAF76), ΔE 0.016 away. Black text reads best on it, at 7.69:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Seafoam Green (#3EAF76) |
| Black text | 7.69:1 |
| White text | 2.72:1 |
Values
| HEX | #55AE75 |
| RGB | rgb(85, 174, 117) |
| HSL | hsl(142, 35%, 51%) |
| OKLCH | oklch(68.1% 0.121 153.6) |
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 #55AE75 | 2.72:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #55AE75 | 7.69:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #55AE75 text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #55AE75 text on black | 7.69:1 | AAA | Lc -49.3 | 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
#DFEEE3
oklch(93.5% 0.022 154.1)
-
Step 200
200
#C5E2CD
oklch(88.6% 0.042 154)
-
Step 300
300
#9BCFAA
oklch(80.8% 0.075 153.5)
-
Step 400
400 (this color)
#55AE75
oklch(68.1% 0.121 153.6)
-
Step 500
500
#17A35B
oklch(63% 0.154 153.6)
-
Step 600
600
#008A4A
oklch(55.6% 0.141 153.6)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#042F17
oklch(27% 0.064 153.7)
#55AE75 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) | #AEA271 | 0.106 |
| Deuteranopia (no green cones) | #A19978 | 0.104 |
| Tritanopia (no blue cones) | #3FAC9F | 0.062 |
| Achromatopsia (no color) | #9D9D9D | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55AE75
#55AE75
oklch(68.1% 0.121 153.6)
- #C57BB8
#C57BB8
oklch(68.1% 0.121 333.4)
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 #55AE75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam Green #3EAF76 ΔE 0.016
- Algae #54AC68 ΔE 0.016
- Tea #65AB7C ΔE 0.021
- Medium Sea Green #3CB371 ΔE 0.024
- Bluey Green #2BB179 ΔE 0.025
- Seaweed Green #35AD6B ΔE 0.028
- Boring Green #63B365 ΔE 0.030
- Dark Seafoam #1FB57A ΔE 0.031
Use #55AE75 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.