#55A666
Closest named color: Algae (#54AC68). oklch(65.7% 0.124 148.9), rgb(85, 166, 102).
Aa
Black text reads best on this color (7.03:1).
About this color
#55A666 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.124 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.017 away. Black text reads best on it, at 7.03:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.03:1 |
| White text | 2.98:1 |
Values
| HEX | #55A666 |
| RGB | rgb(85, 166, 102) |
| HSL | hsl(133, 32%, 49%) |
| OKLCH | oklch(65.7% 0.124 148.9) |
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 #55A666 | 2.98:1 | Fails | Lc -61.6 | Content text, not long reading |
| Black text on #55A666 | 7.03:1 | AAA | Lc 47.8 | Large or bold text, headings |
| #55A666 text on white | 2.98:1 | Fails | Lc 56.3 | Large or bold text, headings |
| #55A666 text on black | 7.03:1 | AAA | Lc -45.5 | 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 500.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE4
oklch(93.5% 0.017 151.1)
-
Step 200
200
#CBE0CD
oklch(88.6% 0.034 148)
-
Step 300
300
#A6CCAC
oklch(80.9% 0.06 149.5)
-
Step 400
400
#75B27F
oklch(70.8% 0.097 148.6)
-
Step 500
500 (this color)
#55A666
oklch(65.7% 0.124 148.9)
-
Step 600
600
#2A8844
oklch(55.6% 0.135 148.9)
-
Step 700
700
#1B7336
oklch(49% 0.124 149.1)
-
Step 800
800
#1A5E2D
oklch(42.7% 0.104 148.9)
-
Step 900
900
#1D4D28
oklch(37.7% 0.081 148.7)
-
Step 950
950
#122D18
oklch(26.9% 0.051 149.2)
#55A666 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) | #A79A62 | 0.102 |
| Deuteranopia (no green cones) | #9C926A | 0.101 |
| Tritanopia (no blue cones) | #46A396 | 0.070 |
| Achromatopsia (no color) | #959595 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A666
#55A666
oklch(65.7% 0.124 148.9)
- #BA74B6
#BA74B6
oklch(65.6% 0.124 328.9)
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 #55A666, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.017
- Muted Green #5FA052 ΔE 0.024
- Seaweed Green #35AD6B ΔE 0.026
- Off Green #6BA353 ΔE 0.026
- Dark Seafoam Green #3EAF76 ΔE 0.028
- Dull Green #74A662 ΔE 0.031
- Fern #63A950 ΔE 0.031
- Jade #1FA774 ΔE 0.033
Use #55A666 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.