#638E19#638E19

#638E19 is a mid, vivid yellow-green. Relative luminance 0.221; OKLCH L 59.4% C 0.147 H 128.7°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#638E19
RGB	rgb(99, 142, 25)
HSL	hsl(82, 70%, 33%)
HSV	hsv(82, 82%, 56%)
CMYK	cmyk(30.3%, 0%, 82.4%, 44.3%)
CIE-LAB	lab(54.10, -31.99, 52.29)
CIE-LCH	lch(54.10, 61.29, 121.46°)
OKLab	oklab(59.35% -0.0919 0.1147)
OKLCH	oklch(59.35% 0.147 128.7)
XYZ	xyz(14.9941, 22.0684, 4.3892)
Luminance	0.2207 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#638E19 #44198E

analogous

#8E7E19 #638E19 #298E19

triadic

#638E19 #19638E #8E1963

tetradic

#638E19 #198E7E #44198E #8E1929

square

#638E19 #198E7E #44198E #8E1929

split-complementary

#638E19 #19298E #7E198E

monochromatic

#1A2607 #3F5A10 #638E19 #87C222 #A5DE43

Accessibility & contrast

On white

3.88

#638E19 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#638E19 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #638E19

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##638E19	#FFFFFF	#000000	##000000
##638E19	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#958300

Deuteranopia (green-blind)

#8F8026

Tritanopia (blue-blind)

#668779

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #638e19;
/* rgb */ color: rgb(99, 142, 25);
/* oklch */ color: oklch(59.4% 0.147 128.7);

Tailwind

colors: {
  custom: {
    50: '#94af61',
    500: '#638e19',
    950: '#000000',
  },
}

SCSS

$custom: #638e19;
$custom-light: #94af61;
$custom-dark: #000000;

JSON

{
  "hex": "#638e19",
  "rgb": {
    "r": 99,
    "g": 142,
    "b": 25
  },
  "hsl": {
    "h": 82.051,
    "s": 70.06,
    "l": 32.745
  },
  "oklch": {
    "l": 0.59353,
    "c": 0.14696,
    "h": 128.7
  },
  "luminance": 0.22069
}

Semantic roles & 50–950 ramp

primary

#638E19

secondary

#7144BF

accent

#3BED7C

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1005

muted

#7E7F7A

Preview Lab

Preview with #638E19

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

Preview Lab → · Contrast checker → · Palette generator →