#40821B#40821B

#40821B is a mid, vivid yellow-green. Relative luminance 0.171; OKLCH L 54.2% C 0.149 H 137.0°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#40821B
RGB	rgb(64, 130, 27)
HSL	hsl(98, 66%, 31%)
HSV	hsv(98, 79%, 51%)
CMYK	cmyk(50.8%, 0%, 79.2%, 49%)
CIE-LAB	lab(48.43, -39.37, 45.72)
CIE-LCH	lch(48.43, 60.33, 130.73°)
OKLab	oklab(54.23% -0.1093 0.102)
OKLCH	oklch(54.23% 0.15 137)
XYZ	xyz(10.2945, 17.1337, 3.8014)
Luminance	0.1713 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40821B #5D1B82

analogous

#73821B #40821B #1B822A

triadic

#40821B #1B4082 #821B40

tetradic

#40821B #1B7382 #5D1B82 #822A1B

square

#40821B #1B7382 #5D1B82 #822A1B

split-complementary

#40821B #2A1B82 #821B73

monochromatic

#0E1D06 #274F10 #40821B #59B526 #76D740

Accessibility & contrast

On white

4.74

#40821B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#40821B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40821B

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40821B	#FFFFFF	#000000	##FFFFFF
##40821B	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#877602

Deuteranopia (green-blind)

#7E7126

Tritanopia (blue-blind)

#3C7D6F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #40821b;
/* rgb */ color: rgb(64, 130, 27);
/* oklch */ color: oklch(54.2% 0.149 137.0);

Tailwind

colors: {
  custom: {
    50: '#7ca760',
    500: '#40821b',
    950: '#000000',
  },
}

SCSS

$custom: #40821b;
$custom-light: #7ca760;
$custom-dark: #000000;

JSON

{
  "hex": "#40821b",
  "rgb": {
    "r": 64,
    "g": 130,
    "b": 27
  },
  "hsl": {
    "h": 98.447,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.54233,
    "c": 0.1495,
    "h": 137
  },
  "luminance": 0.17134
}

Semantic roles & 50–950 ramp

primary

#40821B

secondary

#8C43B6

accent

#3FE9AC

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #40821B

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

Preview Lab → · Contrast checker → · Palette generator →