#178539#178539

#178539 is a mid, vivid green. Relative luminance 0.173; OKLCH L 54.1% C 0.147 H 148.2°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#178539
RGB	rgb(23, 133, 57)
HSL	hsl(139, 71%, 31%)
HSV	hsv(139, 83%, 52%)
CMYK	cmyk(82.7%, 0%, 57.1%, 47.8%)
CIE-LAB	lab(48.58, -46.48, 32.38)
CIE-LCH	lch(48.58, 56.64, 145.14°)
OKLab	oklab(54.12% -0.1248 0.0774)
OKLCH	oklch(54.12% 0.147 148.2)
XYZ	xyz(9.4786, 17.2515, 6.7004)
Luminance	0.1725 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#178539 #851763

analogous

#2C8517 #178539 #178570

triadic

#178539 #391785 #853917

tetradic

#178539 #172C85 #851763 #857017

square

#178539 #172C85 #851763 #857017

split-complementary

#178539 #701785 #85172C

monochromatic

#051D0C #0E5123 #178539 #20B94F #3ADD6C

Accessibility & contrast

On white

4.72

#178539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#178539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #178539

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##178539	#FFFFFF	#000000	##FFFFFF
##178539	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867832

Deuteranopia (green-blind)

#7A703F

Tritanopia (blue-blind)

#008274

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #178539;
/* rgb */ color: rgb(23, 133, 57);
/* oklch */ color: oklch(54.1% 0.147 148.2);

Tailwind

colors: {
  custom: {
    50: '#69aa71',
    500: '#178539',
    950: '#000000',
  },
}

SCSS

$custom: #178539;
$custom-light: #69aa71;
$custom-dark: #000000;

JSON

{
  "hex": "#178539",
  "rgb": {
    "r": 23,
    "g": 133,
    "b": 57
  },
  "hsl": {
    "h": 138.545,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.54121,
    "c": 0.14686,
    "h": 148.2
  },
  "luminance": 0.17253
}

Semantic roles & 50–950 ramp

primary

#178539

secondary

#B93F93

accent

#3BB6ED

background

#F6FAF6

surface

#ECF4EC

border

#C7CEC7

text

#071008

muted

#7A7F7B

Preview Lab

Preview with #178539

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

Preview Lab → · Contrast checker → · Palette generator →