#648B21#648B21

#648B21 is a mid, vivid yellow-green. Relative luminance 0.213; OKLCH L 58.7% C 0.138 H 128.1°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#648B21
RGB	rgb(100, 139, 33)
HSL	hsl(82, 62%, 34%)
HSV	hsv(82, 76%, 55%)
CMYK	cmyk(28.1%, 0%, 76.3%, 45.5%)
CIE-LAB	lab(53.26, -29.76, 48.91)
CIE-LCH	lch(53.26, 57.26, 121.32°)
OKLab	oklab(58.7% -0.0853 0.1089)
OKLCH	oklch(58.7% 0.138 128.1)
XYZ	xyz(14.7627, 21.2840, 4.7690)
Luminance	0.2128 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648B21 #48218B

analogous

#8B7D21 #648B21 #2F8B21

triadic

#648B21 #21648B #8B2164

tetradic

#648B21 #218B7D #48218B #8B212F

square

#648B21 #218B7D #48218B #8B212F

split-complementary

#648B21 #212F8B #7D218B

monochromatic

#1D280A #405A15 #648B21 #88BC2D #A5D651

Accessibility & contrast

On white

3.99

#648B21 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#648B21 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648B21

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648B21	#FFFFFF	#000000	##000000
##648B21	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92810A

Deuteranopia (green-blind)

#8D7E2B

Tritanopia (blue-blind)

#688477

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #648b21;
/* rgb */ color: rgb(100, 139, 33);
/* oklch */ color: oklch(58.7% 0.138 128.1);

Tailwind

colors: {
  custom: {
    50: '#94ad65',
    500: '#648b21',
    950: '#000000',
  },
}

SCSS

$custom: #648b21;
$custom-light: #94ad65;
$custom-dark: #000000;

JSON

{
  "hex": "#648b21",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 33
  },
  "hsl": {
    "h": 82.075,
    "s": 61.628,
    "l": 33.725
  },
  "oklch": {
    "l": 0.58699,
    "c": 0.13833,
    "h": 128.1
  },
  "luminance": 0.21284
}

Semantic roles & 50–950 ramp

primary

#648B21

secondary

#764FB9

accent

#43E57F

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0D1006

muted

#7E7F7A

Preview Lab

Preview with #648B21

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

Preview Lab → · Contrast checker → · Palette generator →