#128F1F#128F1F

#128F1F is a mid, vivid green. Relative luminance 0.199; OKLCH L 56.6% C 0.179 H 143.7°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#128F1F
RGB	rgb(18, 143, 31)
HSL	hsl(126, 78%, 32%)
HSV	hsv(126, 87%, 56%)
CMYK	cmyk(87.4%, 0%, 78.3%, 43.9%)
CIE-LAB	lab(51.69, -53.25, 47.11)
CIE-LCH	lch(51.69, 71.10, 138.50°)
OKLab	oklab(56.62% -0.144 0.1059)
OKLCH	oklch(56.62% 0.179 143.7)
XYZ	xyz(10.3185, 19.8711, 4.5877)
Luminance	0.1987 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#128F1F #8F1282

analogous

#448F12 #128F1F #128F5E

triadic

#128F1F #1F128F #8F1F12

tetradic

#128F1F #12448F #8F1282 #8F5E12

square

#128F1F #12448F #8F1282 #8F5E12

split-complementary

#128F1F #5E128F #8F1244

monochromatic

#042207 #0B5913 #128F1F #19C52B #36E648

Accessibility & contrast

On white

4.22

#128F1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#128F1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #128F1F

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##128F1F	#FFFFFF	#000000	##000000
##128F1F	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928104

Deuteranopia (green-blind)

#85782C

Tritanopia (blue-blind)

#008B7A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #128f1f;
/* rgb */ color: rgb(18, 143, 31);
/* oklch */ color: oklch(56.6% 0.179 143.7);

Tailwind

colors: {
  custom: {
    50: '#6cb163',
    500: '#128f1f',
    950: '#000000',
  },
}

SCSS

$custom: #128f1f;
$custom-light: #6cb163;
$custom-dark: #000000;

JSON

{
  "hex": "#128f1f",
  "rgb": {
    "r": 18,
    "g": 143,
    "b": 31
  },
  "hsl": {
    "h": 126.24,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56617,
    "c": 0.17873,
    "h": 143.7
  },
  "luminance": 0.19872
}

Semantic roles & 50–950 ramp

primary

#128F1F

secondary

#C33AB5

accent

#34E0F4

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#081106

muted

#7B807A

Preview Lab

Preview with #128F1F

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

Preview Lab → · Contrast checker → · Palette generator →