#288B50#288B50

#288B50 is a mid, vivid green. Relative luminance 0.195; OKLCH L 56.5% C 0.128 H 152.8°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#288B50
RGB	rgb(40, 139, 80)
HSL	hsl(144, 55%, 35%)
HSV	hsv(144, 71%, 55%)
CMYK	cmyk(71.2%, 0%, 42.4%, 45.5%)
CIE-LAB	lab(51.26, -42.23, 23.55)
CIE-LCH	lch(51.26, 48.35, 150.85°)
OKLab	oklab(56.54% -0.1139 0.0584)
OKLCH	oklch(56.54% 0.128 152.8)
XYZ	xyz(11.5547, 19.4943, 10.7417)
Luminance	0.1950 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B50 #8B2863

analogous

#328B28 #288B50 #288B81

triadic

#288B50 #50288B #8B5028

tetradic

#288B50 #28328B #8B2863 #8B8128

square

#288B50 #28328B #8B2863 #8B8128

split-complementary

#288B50 #81288B #8B2832

monochromatic

#0D2C19 #1A5B35 #288B50 #36BB6B #5DD08C

Accessibility & contrast

On white

4.29

#288B50 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#288B50 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B50

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B50	#FFFFFF	#000000	##000000
##288B50	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F4C

Deuteranopia (green-blind)

#7F7754

Tritanopia (blue-blind)

#00897C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #288b50;
/* rgb */ color: rgb(40, 139, 80);
/* oklch */ color: oklch(56.5% 0.128 152.8);

Tailwind

colors: {
  custom: {
    50: '#70ae82',
    500: '#288b50',
    950: '#000000',
  },
}

SCSS

$custom: #288b50;
$custom-light: #70ae82;
$custom-dark: #000000;

JSON

{
  "hex": "#288b50",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 80
  },
  "hsl": {
    "h": 144.242,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.56544,
    "c": 0.12799,
    "h": 152.8
  },
  "luminance": 0.19496
}

Semantic roles & 50–950 ramp

primary

#288B50

secondary

#B65990

accent

#49A2DF

background

#F7FAF7

surface

#EDF4EE

border

#C8CEC9

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #288B50

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

Preview Lab → · Contrast checker → · Palette generator →