#1C901B#1C901B

#1C901B is a mid, vivid green. Relative luminance 0.203; OKLCH L 57.0% C 0.180 H 142.7°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#1C901B
RGB	rgb(28, 144, 27)
HSL	hsl(119, 68%, 34%)
HSV	hsv(119, 81%, 56%)
CMYK	cmyk(80.6%, 0%, 81.3%, 43.5%)
CIE-LAB	lab(52.14, -52.67, 48.92)
CIE-LCH	lch(52.14, 71.88, 137.12°)
OKLab	oklab(57.02% -0.143 0.109)
OKLCH	oklch(57.02% 0.18 142.7)
XYZ	xyz(10.6493, 20.2713, 4.3882)
Luminance	0.2027 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C901B #8F1B90

analogous

#56901B #1C901B #1B9054

triadic

#1C901B #1B1C90 #901B1C

tetradic

#1C901B #1B5690 #8F1B90 #90541B

square

#1C901B #1B5690 #8F1B90 #90541B

split-complementary

#1C901B #541B90 #901B56

monochromatic

#082908 #125C11 #1C901B #26C425 #4ADD49

Accessibility & contrast

On white

4.15

#1C901B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#1C901B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1C901B

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C901B	#FFFFFF	#000000	##000000
##1C901B	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)

#938200

Deuteranopia (green-blind)

#877929

Tritanopia (blue-blind)

#008C7A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #1c901b;
/* rgb */ color: rgb(28, 144, 27);
/* oklch */ color: oklch(57.0% 0.180 142.7);

Tailwind

colors: {
  custom: {
    50: '#6fb262',
    500: '#1c901b',
    950: '#000000',
  },
}

SCSS

$custom: #1c901b;
$custom-light: #6fb262;
$custom-dark: #000000;

JSON

{
  "hex": "#1c901b",
  "rgb": {
    "r": 28,
    "g": 144,
    "b": 27
  },
  "hsl": {
    "h": 119.487,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.57024,
    "c": 0.17982,
    "h": 142.7
  },
  "luminance": 0.20273
}

Semantic roles & 50–950 ramp

primary

#1C901B

secondary

#BE48BF

accent

#3DEBEA

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#091105

muted

#7B807A

Preview Lab

Preview with #1C901B

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

Preview Lab → · Contrast checker → · Palette generator →