#648F1B#648F1B

#648F1B is a mid, vivid yellow-green. Relative luminance 0.224; OKLCH L 59.7% C 0.147 H 128.7°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#648F1B
RGB	rgb(100, 143, 27)
HSL	hsl(82, 68%, 33%)
HSV	hsv(82, 81%, 56%)
CMYK	cmyk(30.1%, 0%, 81.1%, 43.9%)
CIE-LAB	lab(54.48, -31.96, 52.06)
CIE-LCH	lch(54.48, 61.09, 121.55°)
OKLab	oklab(59.69% -0.0917 0.1145)
OKLCH	oklch(59.69% 0.147 128.7)
XYZ	xyz(15.2758, 22.4330, 4.5619)
Luminance	0.2243 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648F1B #461B8F

analogous

#8F801B #648F1B #2A8F1B

triadic

#648F1B #1B648F #8F1B64

tetradic

#648F1B #1B8F80 #461B8F #8F1B2A

square

#648F1B #1B8F80 #461B8F #8F1B2A

split-complementary

#648F1B #1B2A8F #801B8F

monochromatic

#1C2808 #405C11 #648F1B #88C225 #A5DC48

Accessibility & contrast

On white

3.83

#648F1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#648F1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648F1B

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648F1B	#FFFFFF	#000000	##000000
##648F1B	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#968400

Deuteranopia (green-blind)

#908128

Tritanopia (blue-blind)

#67887A

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #648f1b;
/* rgb */ color: rgb(100, 143, 27);
/* oklch */ color: oklch(59.7% 0.147 128.7);

Tailwind

colors: {
  custom: {
    50: '#94b062',
    500: '#648f1b',
    950: '#000000',
  },
}

SCSS

$custom: #648f1b;
$custom-light: #94b062;
$custom-dark: #000000;

JSON

{
  "hex": "#648f1b",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 27
  },
  "hsl": {
    "h": 82.241,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.59685,
    "c": 0.14672,
    "h": 128.7
  },
  "luminance": 0.22433
}

Semantic roles & 50–950 ramp

primary

#648F1B

secondary

#7448BE

accent

#3DEB7D

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #648F1B

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

Preview Lab → · Contrast checker → · Palette generator →