#128C1B#128C1B

#128C1B is a mid, vivid green. Relative luminance 0.190; OKLCH L 55.7% C 0.178 H 143.3°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#128C1B
RGB	rgb(18, 140, 27)
HSL	hsl(124, 77%, 31%)
HSV	hsv(124, 87%, 55%)
CMYK	cmyk(87.1%, 0%, 80.7%, 45.1%)
CIE-LAB	lab(50.64, -52.60, 47.44)
CIE-LCH	lch(50.64, 70.83, 137.95°)
OKLab	oklab(55.74% -0.1424 0.106)
OKLCH	oklch(55.74% 0.178 143.3)
XYZ	xyz(9.8247, 18.9627, 4.1791)
Luminance	0.1896 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#128C1B #8C1283

analogous

#468C12 #128C1B #128C58

triadic

#128C1B #1B128C #8C1B12

tetradic

#128C1B #12468C #8C1283 #8C5812

square

#128C1B #12468C #8C1283 #8C5812

split-complementary

#128C1B #58128C #8C1246

monochromatic

#042006 #0B5611 #128C1B #19C225 #34E541

Accessibility & contrast

On white

4.38

#128C1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#128C1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #128C1B

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##128C1B	#FFFFFF	#000000	##000000
##128C1B	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E00

Deuteranopia (green-blind)

#837529

Tritanopia (blue-blind)

#008877

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #128c1b;
/* rgb */ color: rgb(18, 140, 27);
/* oklch */ color: oklch(55.7% 0.178 143.3);

Tailwind

colors: {
  custom: {
    50: '#6caf61',
    500: '#128c1b',
    950: '#000000',
  },
}

SCSS

$custom: #128c1b;
$custom-light: #6caf61;
$custom-dark: #000000;

JSON

{
  "hex": "#128c1b",
  "rgb": {
    "r": 18,
    "g": 140,
    "b": 27
  },
  "hsl": {
    "h": 124.426,
    "s": 77.215,
    "l": 30.98
  },
  "oklch": {
    "l": 0.55737,
    "c": 0.17752,
    "h": 143.3
  },
  "luminance": 0.18964
}

Semantic roles & 50–950 ramp

primary

#128C1B

secondary

#C039B6

accent

#34E6F4

background

#F7FAF6

surface

#EDF5EB

border

#C8CFC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #128C1B

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

Preview Lab → · Contrast checker → · Palette generator →