#55AE73
Closest named color: Algae (#54AC68). oklch(68% 0.123 152.8), rgb(85, 174, 115).
Aa
Black text reads best on this color (7.68:1).
About this color
#55AE73 is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.123 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae (#54AC68), ΔE 0.014 away. Black text reads best on it, at 7.68:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.123) |
| Temperature | in between |
| Nearest name | Algae (#54AC68) |
| Black text | 7.68:1 |
| White text | 2.73:1 |
Values
| HEX | #55AE73 |
| RGB | rgb(85, 174, 115) |
| HSL | hsl(140, 35%, 51%) |
| OKLCH | oklch(68% 0.123 152.8) |
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 #55AE73 | 2.73:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #55AE73 | 7.68:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #55AE73 text on white | 2.73:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #55AE73 text on black | 7.68:1 | AAA | Lc -49.2 | 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
#C5E2CC
oklch(88.5% 0.043 152.7)
-
Step 300
300
#9BD0A9
oklch(81% 0.078 152.6)
-
Step 400
400 (this color)
#55AE73
oklch(68% 0.123 152.8)
-
Step 500
500
#18A459
oklch(63.2% 0.157 152.8)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743B
oklch(49% 0.127 152.7)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#042F16
oklch(26.9% 0.065 152.8)
#55AE73 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) | #AEA26F | 0.107 |
| Deuteranopia (no green cones) | #A19977 | 0.104 |
| Tritanopia (no blue cones) | #40AC9F | 0.064 |
| Achromatopsia (no color) | #9C9C9C | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55AE73
#55AE73
oklch(68% 0.123 152.8)
- #C57AB9
#C57AB9
oklch(68% 0.124 332.8)
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 #55AE73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae #54AC68 ΔE 0.014
- Dark Seafoam Green #3EAF76 ΔE 0.015
- Medium Sea Green #3CB371 ΔE 0.022
- Tea #65AB7C ΔE 0.023
- Bluey Green #2BB179 ΔE 0.024
- Seaweed Green #35AD6B ΔE 0.026
- Boring Green #63B365 ΔE 0.028
- Dark Seafoam #1FB57A ΔE 0.031
Use #55AE73 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.