#289C55#289C55

#289C55 is a mid, vivid green. Relative luminance 0.249; OKLCH L 61.3% C 0.146 H 151.7°. Best body text is #000000 at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#289C55
RGB	rgb(40, 156, 85)
HSL	hsl(143, 59%, 38%)
HSV	hsv(143, 74%, 61%)
CMYK	cmyk(74.4%, 0%, 45.5%, 38.8%)
CIE-LAB	lab(56.96, -47.92, 28.24)
CIE-LCH	lch(56.96, 55.62, 149.49°)
OKLab	oklab(61.28% -0.129 0.0695)
OKLCH	oklch(61.28% 0.146 151.7)
XYZ	xyz(14.4020, 24.8823, 12.6363)
Luminance	0.2488 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289C55 #9C286F

analogous

#359C28 #289C55 #289C8F

triadic

#289C55 #55289C #9C5528

tetradic

#289C55 #28359C #9C286F #9C8F28

square

#289C55 #28359C #9C286F #9C8F28

split-complementary

#289C55 #8F289C #9C2835

monochromatic

#0F3B20 #1C6B3A #289C55 #36CB70 #67D892

Accessibility & contrast

On white

3.51

#289C55 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.98

#289C55 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289C55

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289C55	#FFFFFF	#000000	##000000
##289C55	1.00	3.51	5.98	5.98
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.98	21.00	1.00	1.00
##000000	5.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9C8F50

Deuteranopia (green-blind)

#8F855A

Tritanopia (blue-blind)

#009A8B

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #289c55;
/* rgb */ color: rgb(40, 156, 85);
/* oklch */ color: oklch(61.3% 0.146 151.7);

Tailwind

colors: {
  custom: {
    50: '#73ba86',
    500: '#289c55',
    950: '#000000',
  },
}

SCSS

$custom: #289c55;
$custom-light: #73ba86;
$custom-dark: #000000;

JSON

{
  "hex": "#289c55",
  "rgb": {
    "r": 40,
    "g": 156,
    "b": 85
  },
  "hsl": {
    "h": 143.276,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.61275,
    "c": 0.14648,
    "h": 151.7
  },
  "luminance": 0.24884
}

Semantic roles & 50–950 ramp

primary

#289C55

secondary

#BE629A

accent

#45A5E2

background

#F7FBF8

surface

#EEF6EF

border

#C9D0CA

text

#09120B

muted

#7B817C

Preview Lab

Preview with #289C55

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

Preview Lab → · Contrast checker → · Palette generator →