#288C40#288C40

#288C40 is a mid, vivid green. Relative luminance 0.196; OKLCH L 56.5% C 0.145 H 147.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#288C40
RGB	rgb(40, 140, 64)
HSL	hsl(134, 56%, 35%)
HSV	hsv(134, 71%, 55%)
CMYK	cmyk(71.4%, 0%, 54.3%, 45.1%)
CIE-LAB	lab(51.35, -45.35, 32.23)
CIE-LCH	lch(51.35, 55.64, 144.60°)
OKLab	oklab(56.54% -0.1222 0.0775)
OKLCH	oklch(56.54% 0.145 147.6)
XYZ	xyz(11.1777, 19.5762, 8.0390)
Luminance	0.1958 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C40 #8C2874

analogous

#428C28 #288C40 #288C72

triadic

#288C40 #40288C #8C4028

tetradic

#288C40 #28428C #8C2874 #8C7228

square

#288C40 #28428C #8C2874 #8C7228

split-complementary

#288C40 #72288C #8C2842

monochromatic

#0D2D14 #1A5C2A #288C40 #36BC56 #5ED179

Accessibility & contrast

On white

4.27

#288C40 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#288C40 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C40

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C40	#FFFFFF	#000000	##000000
##288C40	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E7F39

Deuteranopia (green-blind)

#827746

Tritanopia (blue-blind)

#00897B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288c40;
/* rgb */ color: rgb(40, 140, 64);
/* oklch */ color: oklch(56.5% 0.145 147.6);

Tailwind

colors: {
  custom: {
    50: '#70af77',
    500: '#288c40',
    950: '#000000',
  },
}

SCSS

$custom: #288c40;
$custom-light: #70af77;
$custom-dark: #000000;

JSON

{
  "hex": "#288c40",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 64
  },
  "hsl": {
    "h": 134.4,
    "s": 55.556,
    "l": 35.294
  },
  "oklch": {
    "l": 0.56544,
    "c": 0.14471,
    "h": 147.6
  },
  "luminance": 0.19577
}

Semantic roles & 50–950 ramp

primary

#288C40

secondary

#B65AA0

accent

#49BBDF

background

#F7FAF7

surface

#EDF4ED

border

#C8CEC8

text

#081009

muted

#7B7F7B

Preview Lab

Preview with #288C40

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

Preview Lab → · Contrast checker → · Palette generator →