#648F1F#648F1F

#648F1F is a mid, vivid yellow-green. Relative luminance 0.225; OKLCH L 59.7% C 0.145 H 128.9°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#648F1F
RGB	rgb(100, 143, 31)
HSL	hsl(83, 64%, 34%)
HSV	hsv(83, 78%, 56%)
CMYK	cmyk(30.1%, 0%, 78.3%, 43.9%)
CIE-LAB	lab(54.50, -31.76, 50.80)
CIE-LCH	lch(54.50, 59.91, 122.01°)
OKLab	oklab(59.71% -0.0909 0.1125)
OKLCH	oklch(59.71% 0.145 128.9)
XYZ	xyz(15.3253, 22.4528, 4.8224)
Luminance	0.2245 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648F1F #4A1F8F

analogous

#8F821F #648F1F #2C8F1F

triadic

#648F1F #1F648F #8F1F64

tetradic

#648F1F #1F8F82 #4A1F8F #8F1F2C

square

#648F1F #1F8F82 #4A1F8F #8F1F2C

split-complementary

#648F1F #1F2C8F #821F8F

monochromatic

#1E2A09 #415D14 #648F1F #87C12A #A4D94F

Accessibility & contrast

On white

3.82

#648F1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#648F1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648F1F

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648F1F	#FFFFFF	#000000	##000000
##648F1F	1.00	3.82	5.49	5.49
#FFFFFF	3.82	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)

#968402

Deuteranopia (green-blind)

#90812A

Tritanopia (blue-blind)

#67887A

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #648f1f;
/* rgb */ color: rgb(100, 143, 31);
/* oklch */ color: oklch(59.7% 0.145 128.9);

Tailwind

colors: {
  custom: {
    50: '#94b064',
    500: '#648f1f',
    950: '#000000',
  },
}

SCSS

$custom: #648f1f;
$custom-light: #94b064;
$custom-dark: #000000;

JSON

{
  "hex": "#648f1f",
  "rgb": {
    "r": 100,
    "g": 143,
    "b": 31
  },
  "hsl": {
    "h": 83.036,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.59708,
    "c": 0.14464,
    "h": 128.9
  },
  "luminance": 0.22453
}

Semantic roles & 50–950 ramp

primary

#648F1F

secondary

#784EBC

accent

#40E781

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #648F1F

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

Preview Lab → · Contrast checker → · Palette generator →