#178E21#178E21

#178E21 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.4% C 0.176 H 143.6°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#178E21
RGB	rgb(23, 142, 33)
HSL	hsl(125, 72%, 32%)
HSV	hsv(125, 84%, 56%)
CMYK	cmyk(83.8%, 0%, 76.8%, 44.3%)
CIE-LAB	lab(51.42, -52.24, 46.16)
CIE-LCH	lch(51.42, 69.71, 138.54°)
OKLab	oklab(56.42% -0.1414 0.1041)
OKLCH	oklch(56.42% 0.176 143.6)
XYZ	xyz(10.3002, 19.6367, 4.6860)
Luminance	0.1964 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178E21 #8E1784

analogous

#498E17 #178E21 #178E5D

triadic

#178E21 #21178E #8E2117

tetradic

#178E21 #17498E #8E1784 #8E5D17

square

#178E21 #17498E #8E1784 #8E5D17

split-complementary

#178E21 #5D178E #8E1749

monochromatic

#062509 #0E5915 #178E21 #20C32D #3FE04D

Accessibility & contrast

On white

4.26

#178E21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#178E21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #178E21

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178E21	#FFFFFF	#000000	##000000
##178E21	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91800A

Deuteranopia (green-blind)

#84772D

Tritanopia (blue-blind)

#008A79

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #178e21;
/* rgb */ color: rgb(23, 142, 33);
/* oklch */ color: oklch(56.4% 0.176 143.6);

Tailwind

colors: {
  custom: {
    50: '#6db064',
    500: '#178e21',
    950: '#000000',
  },
}

SCSS

$custom: #178e21;
$custom-light: #6db064;
$custom-dark: #000000;

JSON

{
  "hex": "#178e21",
  "rgb": {
    "r": 23,
    "g": 142,
    "b": 33
  },
  "hsl": {
    "h": 125.042,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56416,
    "c": 0.17557,
    "h": 143.6
  },
  "luminance": 0.19638
}

Semantic roles & 50–950 ramp

primary

#178E21

secondary

#C040B6

accent

#39E0EF

background

#F7FBF6

surface

#EDF6EB

border

#C8D0C6

text

#081106

muted

#7B807A

Preview Lab

Preview with #178E21

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

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