#55A973
Closest named color: Algae (#54AC68). oklch(66.7% 0.115 153.7), rgb(85, 169, 115).
Aa
Black text reads best on this color (7.30:1).
About this color
#55A973 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.115 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.019 away. Black text reads best on it, at 7.30:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.115) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #55A973 |
| RGB | rgb(85, 169, 115) |
| HSL | hsl(141, 33%, 50%) |
| OKLCH | oklch(66.7% 0.115 153.7) |
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 #55A973 | 2.87:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #55A973 | 7.30:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #55A973 text on white | 2.87:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #55A973 text on black | 7.30:1 | AAA | Lc -47.1 | 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 500.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CAE0D0
oklch(88.6% 0.032 154.1)
-
Step 300
300
#A5CCB0
oklch(80.9% 0.057 153.8)
-
Step 400
400
#73B187
oklch(70.6% 0.089 153.9)
-
Step 500
500 (this color)
#55A973
oklch(66.7% 0.115 153.7)
-
Step 600
600
#248850
oklch(55.6% 0.125 153.9)
-
Step 700
700
#147340
oklch(49.1% 0.117 153.7)
-
Step 800
800
#165E35
oklch(42.8% 0.097 153.6)
-
Step 900
900
#1B4D2E
oklch(37.7% 0.076 153.4)
-
Step 950
950
#112D1B
oklch(26.9% 0.048 153.5)
#55A973 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) | #A99D70 | 0.103 |
| Deuteranopia (no green cones) | #9D9576 | 0.100 |
| Tritanopia (no blue cones) | #41A79B | 0.059 |
| Achromatopsia (no color) | #989898 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55A973
#55A973
oklch(66.7% 0.115 153.7)
- #BF79B2
#BF79B2
oklch(66.8% 0.115 333.8)
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 #55A973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.019
- Dark Seafoam Green #3EAF76 ΔE 0.021
- Tea #65AB7C ΔE 0.021
- Seaweed Green #35AD6B ΔE 0.029
- Bluey Green #2BB179 ΔE 0.030
- Dull Green #74A662 ΔE 0.032
- Dusty Green #76A973 ΔE 0.033
- Medium Sea Green #3CB371 ΔE 0.033
Use #55A973 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.