#688B28#688B28

#688B28 is a mid, vivid yellow-green. Relative luminance 0.216; OKLCH L 59.0% C 0.132 H 127.0°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#688B28
RGB	rgb(104, 139, 40)
HSL	hsl(81, 55%, 35%)
HSV	hsv(81, 71%, 55%)
CMYK	cmyk(25.2%, 0%, 71.2%, 45.5%)
CIE-LAB	lab(53.56, -27.68, 46.62)
CIE-LCH	lch(53.56, 54.22, 120.70°)
OKLab	oklab(59.02% -0.0793 0.1051)
OKLCH	oklch(59.02% 0.132 127)
XYZ	xyz(15.3246, 21.5612, 5.3614)
Luminance	0.2156 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688B28 #4B288B

analogous

#8B7C28 #688B28 #378B28

triadic

#688B28 #28688B #8B2868

tetradic

#688B28 #288B7C #4B288B #8B2837

square

#688B28 #288B7C #4B288B #8B2837

split-complementary

#688B28 #28378B #7C288B

monochromatic

#212C0D #445B1A #688B28 #8CBB36 #A8D05D

Accessibility & contrast

On white

3.95

#688B28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#688B28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688B28

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688B28	#FFFFFF	#000000	##000000
##688B28	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928118

Deuteranopia (green-blind)

#8D7F30

Tritanopia (blue-blind)

#6C8477

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #688b28;
/* rgb */ color: rgb(104, 139, 40);
/* oklch */ color: oklch(59.0% 0.132 127.0);

Tailwind

colors: {
  custom: {
    50: '#96ad68',
    500: '#688b28',
    950: '#000000',
  },
}

SCSS

$custom: #688b28;
$custom-light: #96ad68;
$custom-dark: #000000;

JSON

{
  "hex": "#688b28",
  "rgb": {
    "r": 104,
    "g": 139,
    "b": 40
  },
  "hsl": {
    "h": 81.212,
    "s": 55.307,
    "l": 35.098
  },
  "oklch": {
    "l": 0.59023,
    "c": 0.13167,
    "h": 127
  },
  "luminance": 0.21561
}

Semantic roles & 50–950 ramp

primary

#688B28

secondary

#7A59B6

accent

#49DF7E

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #688B28

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

Preview Lab → · Contrast checker → · Palette generator →