#1B571E#1B571E
#1B571E is a dark, moderate green. Relative luminance 0.071; OKLCH L 40.4% C 0.108 H 144.0°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).
Color values
| HEX | #1B571E |
|---|---|
| RGB | rgb(27, 87, 30) |
| HSL | hsl(123, 53%, 22%) |
| HSV | hsv(123, 69%, 34%) |
| CMYK | cmyk(69%, 0%, 65.5%, 65.9%) |
| CIE-LAB | lab(32.13, -32.18, 26.98) |
| CIE-LCH | lch(32.13, 41.99, 140.03°) |
| OKLab | oklab(40.42% -0.0872 0.0633) |
| OKLCH | oklch(40.42% 0.108 144) |
| XYZ | xyz(4.0943, 7.1427, 2.3910) |
| Luminance | 0.0714 (WCAG relative) |
| Temperature | neutral |
| Family | green |
Closest named colors
Forest Green
#2D5A27
ΔE00 2.67
Deep Green
#02590F
ΔE00 3.05
Forest
#0B5509
ΔE00 3.19
Pine
#2B5D34
ΔE00 4.70
Bottle Green
#044A05
ΔE00 4.75
Darkgreen (survey)
#054907
ΔE00 4.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B571E #571B54
analogous
#36571B #1B571E #1B573C
triadic
#1B571E #1E1B57 #571E1B
tetradic
#1B571E #1B3657 #571B54 #573C1B
square
#1B571E #1B3657 #571B54 #573C1B
split-complementary
#1B571E #3C1B57 #571B36
monochromatic
#071708 #0D280E #1B571E #29862E #38B43E
Accessibility & contrast
On white
8.65
#1B571E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.43
#1B571E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B571E
8.65:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B571E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B571E | 1.00 | 8.65 | 2.43 | 8.65 |
| #FFFFFF | 8.65 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.65 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#594F18
Deuteranopia (green-blind)
#514A23
Tritanopia (blue-blind)
#0D554B
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #1b571e; /* rgb */ color: rgb(27, 87, 30); /* oklch */ color: oklch(40.4% 0.108 144.0);
Tailwind
colors: {
custom: {
50: '#60875c',
500: '#1b571e',
950: '#000000',
},
}SCSS
$custom: #1b571e; $custom-light: #60875c; $custom-dark: #000000;
JSON
{
"hex": "#1b571e",
"rgb": {
"r": 27,
"g": 87,
"b": 30
},
"hsl": {
"h": 123,
"s": 52.632,
"l": 22.353
},
"oklch": {
"l": 0.40418,
"c": 0.10782,
"h": 144
},
"luminance": 0.07143
}Semantic roles & 50–950 ramp
primary
#1B571E
secondary
#8D4189
accent
#4CD5DC
background
#F5F8F5
surface
#EAEFE9
border
#C6CAC5
text
#050B04
muted
#797C79