#648C21#648C21

#648C21 is a mid, vivid yellow-green. Relative luminance 0.216; OKLCH L 59.0% C 0.140 H 128.3°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#648C21
RGB	rgb(100, 140, 33)
HSL	hsl(82, 62%, 34%)
HSV	hsv(82, 76%, 55%)
CMYK	cmyk(28.6%, 0%, 76.4%, 45.1%)
CIE-LAB	lab(53.57, -30.24, 49.22)
CIE-LCH	lch(53.57, 57.76, 121.56°)
OKLab	oklab(58.96% -0.0866 0.1095)
OKLCH	oklch(58.96% 0.14 128.3)
XYZ	xyz(14.9081, 21.5749, 4.8175)
Luminance	0.2157 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648C21 #49218C

analogous

#8C7F21 #648C21 #2F8C21

triadic

#648C21 #21648C #8C2164

tetradic

#648C21 #218C7F #49218C #8C212F

square

#648C21 #218C7F #49218C #8C212F

split-complementary

#648C21 #212F8C #7F218C

monochromatic

#1D290A #415A15 #648C21 #87BE2D #A4D651

Accessibility & contrast

On white

3.95

#648C21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#648C21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648C21

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648C21	#FFFFFF	#000000	##000000
##648C21	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93820A

Deuteranopia (green-blind)

#8E7F2B

Tritanopia (blue-blind)

#688578

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #648c21;
/* rgb */ color: rgb(100, 140, 33);
/* oklch */ color: oklch(59.0% 0.140 128.3);

Tailwind

colors: {
  custom: {
    50: '#94ae65',
    500: '#648c21',
    950: '#000000',
  },
}

SCSS

$custom: #648c21;
$custom-light: #94ae65;
$custom-dark: #000000;

JSON

{
  "hex": "#648c21",
  "rgb": {
    "r": 100,
    "g": 140,
    "b": 33
  },
  "hsl": {
    "h": 82.43,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.58955,
    "c": 0.13962,
    "h": 128.3
  },
  "luminance": 0.21575
}

Semantic roles & 50–950 ramp

primary

#648C21

secondary

#774FB9

accent

#43E57F

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #648C21

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

Preview Lab → · Contrast checker → · Palette generator →