#1B5A2B#1B5A2B

#1B5A2B is a dark, moderate green. Relative luminance 0.077; OKLCH L 41.5% C 0.099 H 148.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A2B
RGB	rgb(27, 90, 43)
HSL	hsl(135, 54%, 23%)
HSV	hsv(135, 70%, 35%)
CMYK	cmyk(70%, 0%, 52.2%, 64.7%)
CIE-LAB	lab(33.39, -31.43, 21.35)
CIE-LCH	lch(33.39, 37.99, 145.81°)
OKLab	oklab(41.52% -0.0848 0.052)
OKLCH	oklch(41.52% 0.099 148.5)
XYZ	xyz(4.5439, 7.7193, 3.5355)
Luminance	0.0772 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A2B #5A1B4A

analogous

#2A5A1B #1B5A2B #1B5A4A

triadic

#1B5A2B #2B1B5A #5A2B1B

tetradic

#1B5A2B #1B2A5A #5A1B4A #5A4A1B

square

#1B5A2B #1B2A5A #5A1B4A #5A4A1B

split-complementary

#1B5A2B #4A1B5A #5A1B2A

monochromatic

#07180B #0D2B15 #1B5A2B #298941 #37B858

Accessibility & contrast

On white

8.25

#1B5A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1B5A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A2B

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A2B	#FFFFFF	#000000	##FFFFFF
##1B5A2B	1.00	8.25	2.54	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5227

Deuteranopia (green-blind)

#534C2E

Tritanopia (blue-blind)

#05584F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5a2b;
/* rgb */ color: rgb(27, 90, 43);
/* oklch */ color: oklch(41.5% 0.099 148.5);

Tailwind

colors: {
  custom: {
    50: '#608965',
    500: '#1b5a2b',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a2b;
$custom-light: #608965;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a2b",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 43
  },
  "hsl": {
    "h": 135.238,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.41517,
    "c": 0.09943,
    "h": 148.5
  },
  "luminance": 0.0772
}

Semantic roles & 50–950 ramp

primary

#1B5A2B

secondary

#90417C

accent

#4BB8DD

background

#F5F8F6

surface

#EAF0EB

border

#C6CBC6

text

#050B05

muted

#797C7A

Preview Lab

Preview with #1B5A2B

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

Preview Lab → · Contrast checker → · Palette generator →