#218B51#218B51

#218B51 is a mid, vivid green. Relative luminance 0.194; OKLCH L 56.4% C 0.129 H 154.0°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#218B51
RGB	rgb(33, 139, 81)
HSL	hsl(147, 62%, 34%)
HSV	hsv(147, 76%, 55%)
CMYK	cmyk(76.3%, 0%, 41.7%, 45.5%)
CIE-LAB	lab(51.13, -43.18, 22.80)
CIE-LCH	lch(51.13, 48.83, 152.16°)
OKLab	oklab(56.4% -0.1164 0.0567)
OKLCH	oklch(56.4% 0.129 154)
XYZ	xyz(11.3440, 19.3813, 10.9261)
Luminance	0.1938 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218B51 #8B215B

analogous

#268B21 #218B51 #218B86

triadic

#218B51 #51218B #8B5121

tetradic

#218B51 #21268B #8B215B #8B8621

square

#218B51 #21268B #8B215B #8B8621

split-complementary

#218B51 #86218B #8B2126

monochromatic

#0A2817 #155A34 #218B51 #2DBC6E #51D68D

Accessibility & contrast

On white

4.31

#218B51 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#218B51 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218B51

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218B51	#FFFFFF	#000000	##000000
##218B51	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7F4D

Deuteranopia (green-blind)

#7E7655

Tritanopia (blue-blind)

#00897D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #218b51;
/* rgb */ color: rgb(33, 139, 81);
/* oklch */ color: oklch(56.4% 0.129 154.0);

Tailwind

colors: {
  custom: {
    50: '#6dae82',
    500: '#218b51',
    950: '#000000',
  },
}

SCSS

$custom: #218b51;
$custom-light: #6dae82;
$custom-dark: #000000;

JSON

{
  "hex": "#218b51",
  "rgb": {
    "r": 33,
    "g": 139,
    "b": 81
  },
  "hsl": {
    "h": 147.17,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.564,
    "c": 0.12943,
    "h": 154
  },
  "luminance": 0.19383
}

Semantic roles & 50–950 ramp

primary

#218B51

secondary

#B94F89

accent

#439CE5

background

#F7FAF8

surface

#EDF4EF

border

#C8CECA

text

#08100A

muted

#7B7F7C

Preview Lab

Preview with #218B51

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

Preview Lab → · Contrast checker → · Palette generator →