#55B47B
Closest named color: Medium Sea Green (#3CB371). oklch(69.7% 0.124 155), rgb(85, 180, 123).
Aa
Black text reads best on this color (8.20:1).
About this color
#55B47B is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.124 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Sea Green (#3CB371), ΔE 0.024 away. Black text reads best on it, at 8.20:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Medium Sea Green (#3CB371) |
| Black text | 8.20:1 |
| White text | 2.56:1 |
Values
| HEX | #55B47B |
| RGB | rgb(85, 180, 123) |
| HSL | hsl(144, 39%, 52%) |
| OKLCH | oklch(69.7% 0.124 155) |
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 #55B47B | 2.56:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #55B47B | 8.20:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #55B47B text on white | 2.56:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #55B47B text on black | 8.20:1 | AAA | Lc -52.0 | 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
#F0F8F2
oklch(97.1% 0.012 153.7)
-
Step 100
100
#DFEFE3
oklch(93.7% 0.023 153.4)
-
Step 200
200
#C4E2CD
oklch(88.5% 0.043 154.9)
-
Step 300
300
#99D0AB
oklch(80.9% 0.077 154.9)
-
Step 400
400 (this color)
#55B47B
oklch(69.7% 0.124 155)
-
Step 500
500
#00A45E
oklch(63.1% 0.156 155.1)
-
Step 600
600
#008A4E
oklch(55.6% 0.137 155)
-
Step 700
700
#007441
oklch(49.1% 0.121 155.2)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#012F18
oklch(26.9% 0.064 155.7)
#55B47B 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) | #B4A777 | 0.112 |
| Deuteranopia (no green cones) | #A69E7F | 0.109 |
| Tritanopia (no blue cones) | #3BB2A5 | 0.062 |
| Achromatopsia (no color) | #A2A2A2 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55B47B
#55B47B
oklch(69.7% 0.124 155)
- #CD7FBC
#CD7FBC
oklch(69.8% 0.124 335.2)
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 #55B47B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Sea Green #3CB371 ΔE 0.024
- Dark Seafoam Green #3EAF76 ΔE 0.024
- Boring Green #63B365 ΔE 0.027
- Bluey Green #2BB179 ΔE 0.029
- Tea #65AB7C ΔE 0.029
- Algae #54AC68 ΔE 0.029
- Dark Seafoam #1FB57A ΔE 0.029
- Green Teal #0CB577 ΔE 0.034
Use #55B47B 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.