#638E23#638E23

#638E23 is a mid, vivid yellow-green. Relative luminance 0.221; OKLCH L 59.4% C 0.142 H 129.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#638E23
RGB	rgb(99, 142, 35)
HSL	hsl(84, 60%, 35%)
HSV	hsv(84, 75%, 56%)
CMYK	cmyk(30.3%, 0%, 75.4%, 44.3%)
CIE-LAB	lab(54.15, -31.46, 49.04)
CIE-LCH	lch(54.15, 58.26, 122.68°)
OKLab	oklab(59.41% -0.0897 0.1095)
OKLCH	oklch(59.41% 0.142 129.3)
XYZ	xyz(15.1219, 22.1196, 5.0626)
Luminance	0.2212 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638E23 #4E238E

analogous

#8E8423 #638E23 #2E8E23

triadic

#638E23 #23638E #8E2363

tetradic

#638E23 #238E84 #4E238E #8E232E

square

#638E23 #238E84 #4E238E #8E232E

split-complementary

#638E23 #232E8E #84238E

monochromatic

#1F2C0B #415D17 #638E23 #85BF2F #A2D556

Accessibility & contrast

On white

3.87

#638E23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#638E23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638E23

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638E23	#FFFFFF	#000000	##000000
##638E23	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#95830D

Deuteranopia (green-blind)

#8F802D

Tritanopia (blue-blind)

#668879

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638e23;
/* rgb */ color: rgb(99, 142, 35);
/* oklch */ color: oklch(59.4% 0.142 129.3);

Tailwind

colors: {
  custom: {
    50: '#93af66',
    500: '#638e23',
    950: '#000000',
  },
}

SCSS

$custom: #638e23;
$custom-light: #93af66;
$custom-dark: #000000;

JSON

{
  "hex": "#638e23",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 35
  },
  "hsl": {
    "h": 84.112,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.59415,
    "c": 0.14154,
    "h": 129.3
  },
  "luminance": 0.2212
}

Semantic roles & 50–950 ramp

primary

#638E23

secondary

#7C53B9

accent

#44E484

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #638E23

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

Preview Lab → · Contrast checker → · Palette generator →