#1B5F2B#1B5F2B

#1B5F2B is a dark, moderate green. Relative luminance 0.086; OKLCH L 43.0% C 0.107 H 147.8°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B5F2B
RGB	rgb(27, 95, 43)
HSL	hsl(134, 56%, 24%)
HSV	hsv(134, 72%, 37%)
CMYK	cmyk(71.6%, 0%, 54.7%, 62.7%)
CIE-LAB	lab(35.19, -33.53, 23.58)
CIE-LCH	lch(35.19, 40.99, 144.88°)
OKLab	oklab(43% -0.0904 0.057)
OKLCH	oklch(43% 0.107 147.8)
XYZ	xyz(4.9799, 8.5913, 3.6809)
Luminance	0.0859 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5F2B #5F1B4F

analogous

#2D5F1B #1B5F2B #1B5F4D

triadic

#1B5F2B #2B1B5F #5F2B1B

tetradic

#1B5F2B #1B2D5F #5F1B4F #5F4D1B

square

#1B5F2B #1B2D5F #5F1B4F #5F4D1B

split-complementary

#1B5F2B #4D1B5F #5F1B2D

monochromatic

#07180B #0D2F15 #1B5F2B #298F41 #36BE56

Accessibility & contrast

On white

7.73

#1B5F2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1B5F2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5F2B

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5F2B	#FFFFFF	#000000	##FFFFFF
##1B5F2B	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605627

Deuteranopia (green-blind)

#58502F

Tritanopia (blue-blind)

#025D53

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5f2b;
/* rgb */ color: rgb(27, 95, 43);
/* oklch */ color: oklch(43.0% 0.107 147.8);

Tailwind

colors: {
  custom: {
    50: '#618d65',
    500: '#1b5f2b',
    950: '#000000',
  },
}

SCSS

$custom: #1b5f2b;
$custom-light: #618d65;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5f2b",
  "rgb": {
    "r": 27,
    "g": 95,
    "b": 43
  },
  "hsl": {
    "h": 134.118,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.42997,
    "c": 0.10687,
    "h": 147.8
  },
  "luminance": 0.08592
}

Semantic roles & 50–950 ramp

primary

#1B5F2B

secondary

#954181

accent

#49BCDF

background

#F6F8F6

surface

#EBF0EB

border

#C6CBC6

text

#050C06

muted

#7A7D7A

Preview Lab

Preview with #1B5F2B

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

Preview Lab → · Contrast checker → · Palette generator →