#1B643B#1B643B

#1B643B is a dark, moderate green. Relative luminance 0.097; OKLCH L 44.8% C 0.098 H 154.3°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#1B643B
RGB	rgb(27, 100, 59)
HSL	hsl(146, 57%, 25%)
HSV	hsv(146, 73%, 39%)
CMYK	cmyk(73%, 0%, 41%, 60.8%)
CIE-LAB	lab(37.23, -32.61, 16.97)
CIE-LCH	lch(37.23, 36.76, 152.50°)
OKLab	oklab(44.77% -0.0881 0.0424)
OKLCH	oklch(44.77% 0.098 154.3)
XYZ	xyz(5.7981, 9.6625, 5.6963)
Luminance	0.0966 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B643B #641B44

analogous

#20641B #1B643B #1B645F

triadic

#1B643B #3B1B64 #643B1B

tetradic

#1B643B #1B2064 #641B44 #645F1B

square

#1B643B #1B2064 #641B44 #645F1B

split-complementary

#1B643B #5F1B64 #641B20

monochromatic

#07180E #0E341F #1B643B #289457 #35C474

Accessibility & contrast

On white

7.16

#1B643B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#1B643B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B643B

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B643B	#FFFFFF	#000000	##FFFFFF
##1B643B	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B38

Deuteranopia (green-blind)

#5B553E

Tritanopia (blue-blind)

#00635A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1b643b;
/* rgb */ color: rgb(27, 100, 59);
/* oklch */ color: oklch(44.8% 0.098 154.3);

Tailwind

colors: {
  custom: {
    50: '#629171',
    500: '#1b643b',
    950: '#000000',
  },
}

SCSS

$custom: #1b643b;
$custom-light: #629171;
$custom-dark: #000000;

JSON

{
  "hex": "#1b643b",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 59
  },
  "hsl": {
    "h": 146.301,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44771,
    "c": 0.09777,
    "h": 154.3
  },
  "luminance": 0.09663
}

Semantic roles & 50–950 ramp

primary

#1B643B

secondary

#994173

accent

#479DE1

background

#F6F8F6

surface

#EBF0EC

border

#C6CBC7

text

#060D07

muted

#7A7D7A

Preview Lab

Preview with #1B643B

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

Preview Lab → · Contrast checker → · Palette generator →