#21823B#21823B

#21823B is a mid, vivid green. Relative luminance 0.166; OKLCH L 53.5% C 0.138 H 148.1°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#21823B
RGB	rgb(33, 130, 59)
HSL	hsl(136, 60%, 32%)
HSV	hsv(136, 75%, 51%)
CMYK	cmyk(74.6%, 0%, 54.6%, 49%)
CIE-LAB	lab(47.76, -43.60, 30.39)
CIE-LCH	lch(47.76, 53.15, 145.12°)
OKLab	oklab(53.5% -0.1173 0.0731)
OKLCH	oklch(53.5% 0.138 148.1)
XYZ	xyz(9.3985, 16.6033, 6.8463)
Luminance	0.1660 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21823B #822168

analogous

#388221 #21823B #21826B

triadic

#21823B #3B2182 #823B21

tetradic

#21823B #213882 #822168 #826B21

square

#21823B #213882 #822168 #826B21

split-complementary

#21823B #6B2182 #822138

monochromatic

#08200F #155125 #21823B #2DB351 #4CD270

Accessibility & contrast

On white

4.86

#21823B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#21823B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #21823B

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21823B	#FFFFFF	#000000	##FFFFFF
##21823B	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837635

Deuteranopia (green-blind)

#786E40

Tritanopia (blue-blind)

#007F72

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #21823b;
/* rgb */ color: rgb(33, 130, 59);
/* oklch */ color: oklch(53.5% 0.138 148.1);

Tailwind

colors: {
  custom: {
    50: '#6ca773',
    500: '#21823b',
    950: '#000000',
  },
}

SCSS

$custom: #21823b;
$custom-light: #6ca773;
$custom-dark: #000000;

JSON

{
  "hex": "#21823b",
  "rgb": {
    "r": 33,
    "g": 130,
    "b": 59
  },
  "hsl": {
    "h": 136.082,
    "s": 59.509,
    "l": 31.961
  },
  "oklch": {
    "l": 0.53502,
    "c": 0.13827,
    "h": 148.1
  },
  "luminance": 0.16604
}

Semantic roles & 50–950 ramp

primary

#21823B

secondary

#B44A98

accent

#45B8E3

background

#F6FAF7

surface

#ECF4ED

border

#C7CEC8

text

#081008

muted

#7A7F7B

Preview Lab

Preview with #21823B

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

Preview Lab → · Contrast checker → · Palette generator →