#1B8539#1B8539

#1B8539 is a mid, vivid green. Relative luminance 0.173; OKLCH L 54.2% C 0.146 H 147.9°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B8539
RGB	rgb(27, 133, 57)
HSL	hsl(137, 66%, 31%)
HSV	hsv(137, 80%, 52%)
CMYK	cmyk(79.7%, 0%, 57.1%, 47.8%)
CIE-LAB	lab(48.64, -45.95, 32.47)
CIE-LCH	lch(48.64, 56.26, 144.75°)
OKLab	oklab(54.19% -0.1235 0.0776)
OKLCH	oklch(54.19% 0.146 147.9)
XYZ	xyz(9.5773, 17.3023, 6.7050)
Luminance	0.1730 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8539 #851B67

analogous

#32851B #1B8539 #1B856E

triadic

#1B8539 #391B85 #85391B

tetradic

#1B8539 #1B3285 #851B67 #856E1B

square

#1B8539 #1B3285 #851B67 #856E1B

split-complementary

#1B8539 #6E1B85 #851B32

monochromatic

#061F0D #115223 #1B8539 #25B84F #42D96C

Accessibility & contrast

On white

4.71

#1B8539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#1B8539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B8539

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8539	#FFFFFF	#000000	##FFFFFF
##1B8539	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867932

Deuteranopia (green-blind)

#7B703F

Tritanopia (blue-blind)

#008274

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #1b8539;
/* rgb */ color: rgb(27, 133, 57);
/* oklch */ color: oklch(54.2% 0.146 147.9);

Tailwind

colors: {
  custom: {
    50: '#6aaa71',
    500: '#1b8539',
    950: '#000000',
  },
}

SCSS

$custom: #1b8539;
$custom-light: #6aaa71;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8539",
  "rgb": {
    "r": 27,
    "g": 133,
    "b": 57
  },
  "hsl": {
    "h": 136.981,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.54192,
    "c": 0.14586,
    "h": 147.9
  },
  "luminance": 0.17303
}

Semantic roles & 50–950 ramp

primary

#1B8539

secondary

#B84497

accent

#3FB9E9

background

#F6FAF6

surface

#ECF4EC

border

#C7CEC7

text

#081008

muted

#7A7F7B

Preview Lab

Preview with #1B8539

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

Preview Lab → · Contrast checker → · Palette generator →