#648B31#648B31

#648B31 is a mid, vivid yellow-green. Relative luminance 0.214; OKLCH L 58.8% C 0.127 H 129.5°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#648B31
RGB	rgb(100, 139, 49)
HSL	hsl(86, 48%, 37%)
HSV	hsv(86, 65%, 55%)
CMYK	cmyk(28.1%, 0%, 64.7%, 45.5%)
CIE-LAB	lab(53.38, -28.60, 42.50)
CIE-LCH	lch(53.38, 51.23, 123.93°)
OKLab	oklab(58.84% -0.0807 0.0978)
OKLCH	oklch(58.84% 0.127 129.5)
XYZ	xyz(15.0424, 21.3959, 6.2424)
Luminance	0.2140 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#648B31 #58318B

analogous

#8B8531 #648B31 #378B31

triadic

#648B31 #31648B #8B3164

tetradic

#648B31 #318B85 #58318B #8B3137

square

#648B31 #318B85 #58318B #8B3137

split-complementary

#648B31 #31378B #85318B

monochromatic

#233111 #435E21 #648B31 #85B841 #A2CB6B

Accessibility & contrast

On white

3.98

#648B31 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#648B31 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #648B31

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##648B31	#FFFFFF	#000000	##000000
##648B31	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918126

Deuteranopia (green-blind)

#8C7F38

Tritanopia (blue-blind)

#678578

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #648b31;
/* rgb */ color: rgb(100, 139, 49);
/* oklch */ color: oklch(58.8% 0.127 129.5);

Tailwind

colors: {
  custom: {
    50: '#93ad6d',
    500: '#648b31',
    950: '#000000',
  },
}

SCSS

$custom: #648b31;
$custom-light: #93ad6d;
$custom-dark: #000000;

JSON

{
  "hex": "#648b31",
  "rgb": {
    "r": 100,
    "g": 139,
    "b": 49
  },
  "hsl": {
    "h": 86,
    "s": 47.872,
    "l": 36.863
  },
  "oklch": {
    "l": 0.58837,
    "c": 0.12681,
    "h": 129.5
  },
  "luminance": 0.21396
}

Semantic roles & 50–950 ramp

primary

#648B31

secondary

#8765B2

accent

#50D78B

background

#F9FAF6

surface

#F2F4EC

border

#CCCEC7

text

#0D1007

muted

#7E7F7A

Preview Lab

Preview with #648B31

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

Preview Lab → · Contrast checker → · Palette generator →