#1B901A#1B901A

#1B901A is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.0% C 0.181 H 142.7°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B901A
RGB	rgb(27, 144, 26)
HSL	hsl(119, 69%, 33%)
HSV	hsv(119, 82%, 56%)
CMYK	cmyk(81.3%, 0%, 81.9%, 43.5%)
CIE-LAB	lab(52.12, -52.87, 49.20)
CIE-LCH	lch(52.12, 72.22, 137.06°)
OKLab	oklab(57% -0.1435 0.1095)
OKLCH	oklch(57% 0.181 142.7)
XYZ	xyz(10.6110, 20.2528, 4.3270)
Luminance	0.2025 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B901A #8F1A90

analogous

#56901A #1B901A #1A9054

triadic

#1B901A #1A1B90 #901A1B

tetradic

#1B901A #1A5690 #8F1A90 #90541A

square

#1B901A #1A5690 #8F1A90 #90541A

split-complementary

#1B901A #541A90 #901A56

monochromatic

#082807 #115C11 #1B901A #25C423 #48DE47

Accessibility & contrast

On white

4.16

#1B901A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#1B901A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B901A

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B901A	#FFFFFF	#000000	##000000
##1B901A	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938200

Deuteranopia (green-blind)

#877929

Tritanopia (blue-blind)

#008C7A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1b901a;
/* rgb */ color: rgb(27, 144, 26);
/* oklch */ color: oklch(57.0% 0.181 142.7);

Tailwind

colors: {
  custom: {
    50: '#6fb261',
    500: '#1b901a',
    950: '#000000',
  },
}

SCSS

$custom: #1b901a;
$custom-light: #6fb261;
$custom-dark: #000000;

JSON

{
  "hex": "#1b901a",
  "rgb": {
    "r": 27,
    "g": 144,
    "b": 26
  },
  "hsl": {
    "h": 119.492,
    "s": 69.412,
    "l": 33.333
  },
  "oklch": {
    "l": 0.57001,
    "c": 0.18053,
    "h": 142.7
  },
  "luminance": 0.20254
}

Semantic roles & 50–950 ramp

primary

#1B901A

secondary

#BE47BF

accent

#3CECEB

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091105

muted

#7B807A

Preview Lab

Preview with #1B901A

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

Preview Lab → · Contrast checker → · Palette generator →