#55B554
Closest named color: Dark Pastel Green (#56AE57). oklch(69.3% 0.163 143.4), rgb(85, 181, 84).
Aa
Black text reads best on this color (8.12:1).
About this color
#55B554 is a medium-light, vivid green. In OKLCH its lightness is 69%, its chroma 0.163 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Pastel Green (#56AE57), ΔE 0.022 away. Black text reads best on it, at 8.12:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Dark Pastel Green (#56AE57) |
| Black text | 8.12:1 |
| White text | 2.58:1 |
Values
| HEX | #55B554 |
| RGB | rgb(85, 181, 84) |
| HSL | hsl(119, 40%, 52%) |
| OKLCH | oklch(69.3% 0.163 143.4) |
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 #55B554 | 2.58:1 | Fails | Lc -55.4 | Large or bold text, headings |
| Black text on #55B554 | 8.12:1 | AAA | Lc 53.8 | Large or bold text, headings |
| #55B554 text on white | 2.58:1 | Fails | Lc 50.2 | Large or bold text, headings |
| #55B554 text on black | 8.12:1 | AAA | Lc -51.7 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C4E3C2
oklch(88.4% 0.055 143.5)
-
Step 300
300
#99D296
oklch(80.9% 0.102 143.4)
-
Step 400
400 (this color)
#55B554
oklch(69.3% 0.163 143.4)
-
Step 500
500
#02A719
oklch(63.2% 0.208 143.4)
-
Step 600
600
#008C13
oklch(55.5% 0.183 143.4)
-
Step 700
700
#00760E
oklch(49.1% 0.162 143.4)
-
Step 800
800
#00610A
oklch(42.7% 0.141 143.4)
-
Step 900
900
#005107
oklch(37.7% 0.124 143.4)
-
Step 950
950
#023004
oklch(26.9% 0.086 143.4)
#55B554 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) | #B8A64B | 0.119 |
| Deuteranopia (no green cones) | #AC9E5B | 0.119 |
| Tritanopia (no blue cones) | #47B09F | 0.103 |
| Achromatopsia (no color) | #A1A1A1 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55B554
#55B554
oklch(69.3% 0.163 143.4)
- #CC76D5
#CC76D5
oklch(69.4% 0.162 323.6)
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 #55B554, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Pastel Green #56AE57 ΔE 0.022
- Cool Green #33B864 ΔE 0.023
- Leafy Green #51B73B ΔE 0.026
- Boring Green #63B365 ΔE 0.027
- Turtle Green #75B84F ΔE 0.032
- Fern #63A950 ΔE 0.034
- Medium Green #39AD48 ΔE 0.035
- Grass #5CAC2D ΔE 0.035
Use #55B554 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.