#1B5A3A#1B5A3A

#1B5A3A is a dark, moderate green. Relative luminance 0.079; OKLCH L 41.8% C 0.084 H 157.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A3A
RGB	rgb(27, 90, 58)
HSL	hsl(150, 54%, 23%)
HSV	hsv(150, 70%, 35%)
CMYK	cmyk(70%, 0%, 35.6%, 64.7%)
CIE-LAB	lab(33.67, -28.36, 12.79)
CIE-LCH	lch(33.67, 31.12, 155.72°)
OKLab	oklab(41.84% -0.0771 0.0323)
OKLCH	oklch(41.84% 0.084 157.3)
XYZ	xyz(4.8714, 7.8503, 5.2607)
Luminance	0.0785 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A3A #5A1B3B

analogous

#1B5A1B #1B5A3A #1B5A59

triadic

#1B5A3A #3A1B5A #5A3A1B

tetradic

#1B5A3A #1B1B5A #5A1B3B #5A591B

square

#1B5A3A #1B1B5A #5A1B3B #5A591B

split-complementary

#1B5A3A #591B5A #5A1B1B

monochromatic

#07180F #0D2B1C #1B5A3A #298958 #37B877

Accessibility & contrast

On white

8.17

#1B5A3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#1B5A3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A3A

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A3A	#FFFFFF	#000000	##FFFFFF
##1B5A3A	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595338

Deuteranopia (green-blind)

#514D3C

Tritanopia (blue-blind)

#005952

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5a3a;
/* rgb */ color: rgb(27, 90, 58);
/* oklch */ color: oklch(41.8% 0.084 157.3);

Tailwind

colors: {
  custom: {
    50: '#608970',
    500: '#1b5a3a',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a3a;
$custom-light: #608970;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a3a",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 58
  },
  "hsl": {
    "h": 149.524,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.41837,
    "c": 0.08357,
    "h": 157.3
  },
  "luminance": 0.07851
}

Semantic roles & 50–950 ramp

primary

#1B5A3A

secondary

#904169

accent

#4B95DD

background

#F5F8F6

surface

#EAF0EC

border

#C6CBC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #1B5A3A

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

Preview Lab → · Contrast checker → · Palette generator →