#1B8540#1B8540

#1B8540 is a mid, vivid green. Relative luminance 0.174; OKLCH L 54.3% C 0.139 H 149.8°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B8540
RGB	rgb(27, 133, 64)
HSL	hsl(141, 66%, 31%)
HSV	hsv(141, 80%, 52%)
CMYK	cmyk(79.7%, 0%, 51.9%, 47.8%)
CIE-LAB	lab(48.73, -44.84, 28.94)
CIE-LCH	lch(48.73, 53.37, 147.16°)
OKLab	oklab(54.3% -0.1205 0.0702)
OKLCH	oklch(54.3% 0.139 149.8)
XYZ	xyz(9.7641, 17.3771, 7.6890)
Luminance	0.1738 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8540 #851B60

analogous

#2B851B #1B8540 #1B8575

triadic

#1B8540 #401B85 #85401B

tetradic

#1B8540 #1B2B85 #851B60 #85751B

square

#1B8540 #1B2B85 #851B60 #85751B

split-complementary

#1B8540 #751B85 #851B2B

monochromatic

#061F0F #115228 #1B8540 #25B858 #42D976

Accessibility & contrast

On white

4.69

#1B8540 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#1B8540 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B8540

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8540	#FFFFFF	#000000	##FFFFFF
##1B8540	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#86793A

Deuteranopia (green-blind)

#7A7045

Tritanopia (blue-blind)

#008275

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #1b8540;
/* rgb */ color: rgb(27, 133, 64);
/* oklch */ color: oklch(54.3% 0.139 149.8);

Tailwind

colors: {
  custom: {
    50: '#6aa976',
    500: '#1b8540',
    950: '#000000',
  },
}

SCSS

$custom: #1b8540;
$custom-light: #6aa976;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8540",
  "rgb": {
    "r": 27,
    "g": 133,
    "b": 64
  },
  "hsl": {
    "h": 140.943,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.54299,
    "c": 0.13941,
    "h": 149.8
  },
  "luminance": 0.17378
}

Semantic roles & 50–950 ramp

primary

#1B8540

secondary

#B84490

accent

#3FAEE9

background

#F6FAF7

surface

#ECF4ED

border

#C7CEC8

text

#081008

muted

#7A7F7B

Preview Lab

Preview with #1B8540

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

Preview Lab → · Contrast checker → · Palette generator →