#218F51#218F51

#218F51 is a mid, vivid green. Relative luminance 0.206; OKLCH L 57.5% C 0.135 H 153.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#218F51
RGB	rgb(33, 143, 81)
HSL	hsl(146, 63%, 35%)
HSV	hsv(146, 77%, 56%)
CMYK	cmyk(76.9%, 0%, 43.4%, 43.9%)
CIE-LAB	lab(52.47, -44.74, 24.55)
CIE-LCH	lch(52.47, 51.03, 151.24°)
OKLab	oklab(57.5% -0.1204 0.0608)
OKLCH	oklch(57.5% 0.135 153.2)
XYZ	xyz(11.9338, 20.5609, 11.1227)
Luminance	0.2056 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218F51 #8F215F

analogous

#288F21 #218F51 #218F88

triadic

#218F51 #51218F #8F5121

tetradic

#218F51 #21288F #8F215F #8F8821

square

#218F51 #21288F #8F215F #8F8821

split-complementary

#218F51 #88218F #8F2128

monochromatic

#0A2C19 #165D35 #218F51 #2CC16D #53D78D

Accessibility & contrast

On white

4.11

#218F51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#218F51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218F51

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218F51	#FFFFFF	#000000	##000000
##218F51	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F834D

Deuteranopia (green-blind)

#827955

Tritanopia (blue-blind)

#008D80

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #218f51;
/* rgb */ color: rgb(33, 143, 81);
/* oklch */ color: oklch(57.5% 0.135 153.2);

Tailwind

colors: {
  custom: {
    50: '#6eb182',
    500: '#218f51',
    950: '#000000',
  },
}

SCSS

$custom: #218f51;
$custom-light: #6eb182;
$custom-dark: #000000;

JSON

{
  "hex": "#218f51",
  "rgb": {
    "r": 33,
    "g": 143,
    "b": 81
  },
  "hsl": {
    "h": 146.182,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.57503,
    "c": 0.13491,
    "h": 153.2
  },
  "luminance": 0.20562
}

Semantic roles & 50–950 ramp

primary

#218F51

secondary

#BB518D

accent

#429EE6

background

#F7FBF8

surface

#EDF6EF

border

#C8D0CA

text

#08110A

muted

#7B807C

Preview Lab

Preview with #218F51

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

Preview Lab → · Contrast checker → · Palette generator →