#1B901E#1B901E

#1B901E is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.0% C 0.179 H 143.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B901E
RGB	rgb(27, 144, 30)
HSL	hsl(122, 68%, 34%)
HSV	hsv(122, 81%, 56%)
CMYK	cmyk(81.3%, 0%, 79.2%, 43.5%)
CIE-LAB	lab(52.14, -52.60, 47.94)
CIE-LCH	lch(52.14, 71.17, 137.66°)
OKLab	oklab(57.03% -0.1426 0.1074)
OKLCH	oklch(57.03% 0.179 143)
XYZ	xyz(10.6589, 20.2720, 4.5792)
Luminance	0.2027 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B901E #901B8D

analogous

#52901B #1B901E #1B9058

triadic

#1B901E #1E1B90 #901E1B

tetradic

#1B901E #1B5290 #901B8D #90581B

square

#1B901E #1B5290 #901B8D #90581B

split-complementary

#1B901E #581B90 #901B52

monochromatic

#082909 #115C13 #1B901E #25C429 #49DD4C

Accessibility & contrast

On white

4.15

#1B901E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#1B901E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B901E

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B901E	#FFFFFF	#000000	##000000
##1B901E	1.00	4.15	5.05	5.05
#FFFFFF	4.15	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)

#938201

Deuteranopia (green-blind)

#87792B

Tritanopia (blue-blind)

#008C7B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1b901e;
/* rgb */ color: rgb(27, 144, 30);
/* oklch */ color: oklch(57.0% 0.179 143.0);

Tailwind

colors: {
  custom: {
    50: '#6fb263',
    500: '#1b901e',
    950: '#000000',
  },
}

SCSS

$custom: #1b901e;
$custom-light: #6fb263;
$custom-dark: #000000;

JSON

{
  "hex": "#1b901e",
  "rgb": {
    "r": 27,
    "g": 144,
    "b": 30
  },
  "hsl": {
    "h": 121.538,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57026,
    "c": 0.17856,
    "h": 143
  },
  "luminance": 0.20273
}

Semantic roles & 50–950 ramp

primary

#1B901E

secondary

#BF48BC

accent

#3DE7EB

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091106

muted

#7B807A

Preview Lab

Preview with #1B901E

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

Preview Lab → · Contrast checker → · Palette generator →