#1B5B2F#1B5B2F

#1B5B2F is a dark, moderate green. Relative luminance 0.079; OKLCH L 41.9% C 0.097 H 150.2°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B2F
RGB	rgb(27, 91, 47)
HSL	hsl(139, 54%, 23%)
HSV	hsv(139, 70%, 36%)
CMYK	cmyk(70.3%, 0%, 48.4%, 64.3%)
CIE-LAB	lab(33.82, -31.12, 19.57)
CIE-LCH	lch(33.82, 36.77, 147.84°)
OKLab	oklab(41.89% -0.084 0.0481)
OKLCH	oklch(41.89% 0.097 150.2)
XYZ	xyz(4.7058, 7.9199, 3.9695)
Luminance	0.0792 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B2F #5B1B47

analogous

#275B1B #1B5B2F #1B5B4F

triadic

#1B5B2F #2F1B5B #5B2F1B

tetradic

#1B5B2F #1B275B #5B1B47 #5B4F1B

square

#1B5B2F #1B275B #5B1B47 #5B4F1B

split-complementary

#1B5B2F #4F1B5B #5B1B27

monochromatic

#07180C #0D2C17 #1B5B2F #298A47 #37B960

Accessibility & contrast

On white

8.13

#1B5B2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B5B2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B2F

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B2F	#FFFFFF	#000000	##FFFFFF
##1B5B2F	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532C

Deuteranopia (green-blind)

#544D32

Tritanopia (blue-blind)

#025950

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b5b2f;
/* rgb */ color: rgb(27, 91, 47);
/* oklch */ color: oklch(41.9% 0.097 150.2);

Tailwind

colors: {
  custom: {
    50: '#608a68',
    500: '#1b5b2f',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b2f;
$custom-light: #608a68;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b2f",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 47
  },
  "hsl": {
    "h": 138.75,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.41888,
    "c": 0.09675,
    "h": 150.2
  },
  "luminance": 0.0792
}

Semantic roles & 50–950 ramp

primary

#1B5B2F

secondary

#914178

accent

#4AB0DE

background

#F5F8F6

surface

#EAF0EB

border

#C6CBC6

text

#050C06

muted

#797D7A

Preview Lab

Preview with #1B5B2F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →