#677B18#677B18

#677B18 is a mid, vivid yellow-green. Relative luminance 0.171; OKLCH L 54.8% C 0.122 H 120.9°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#677B18
RGB	rgb(103, 123, 24)
HSL	hsl(72, 67%, 29%)
HSV	hsv(72, 80%, 48%)
CMYK	cmyk(16.3%, 0%, 80.5%, 51.8%)
CIE-LAB	lab(48.41, -21.04, 47.51)
CIE-LCH	lch(48.41, 51.96, 113.89°)
OKLab	oklab(54.81% -0.0624 0.1043)
OKLCH	oklch(54.81% 0.122 120.9)
XYZ	xyz(12.8416, 17.1154, 3.4911)
Luminance	0.1711 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#677B18 #2C187B

analogous

#7B5E18 #677B18 #367B18

triadic

#677B18 #18677B #7B1867

tetradic

#677B18 #187B5E #2C187B #7B1836

square

#677B18 #187B5E #2C187B #7B1836

split-complementary

#677B18 #18367B #5E187B

monochromatic

#151A05 #3C480E #677B18 #92AE22 #B7D836

Accessibility & contrast

On white

4.75

#677B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#677B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #677B18

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##677B18	#FFFFFF	#000000	##FFFFFF
##677B18	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837300

Deuteranopia (green-blind)

#817322

Tritanopia (blue-blind)

#6D7469

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #677b18;
/* rgb */ color: rgb(103, 123, 24);
/* oklch */ color: oklch(54.8% 0.122 120.9);

Tailwind

colors: {
  custom: {
    50: '#96a15e',
    500: '#677b18',
    950: '#000000',
  },
}

SCSS

$custom: #677b18;
$custom-light: #96a15e;
$custom-dark: #000000;

JSON

{
  "hex": "#677b18",
  "rgb": {
    "r": 103,
    "g": 123,
    "b": 24
  },
  "hsl": {
    "h": 72.121,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.54805,
    "c": 0.12154,
    "h": 120.9
  },
  "luminance": 0.17115
}

Semantic roles & 50–950 ramp

primary

#677B18

secondary

#563FB0

accent

#3EEA60

background

#F9F9F5

surface

#F2F2EA

border

#CCCCC6

text

#0E0E05

muted

#7E7E79

Preview Lab

Preview with #677B18

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

Preview Lab → · Contrast checker → · Palette generator →