#688B1F#688B1F

#688B1F is a mid, vivid yellow-green. Relative luminance 0.215; OKLCH L 59.0% C 0.137 H 126.4°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#688B1F
RGB	rgb(104, 139, 31)
HSL	hsl(79, 64%, 33%)
HSV	hsv(79, 78%, 55%)
CMYK	cmyk(25.2%, 0%, 77.7%, 45.5%)
CIE-LAB	lab(53.50, -28.24, 49.93)
CIE-LCH	lch(53.50, 57.37, 119.49°)
OKLab	oklab(58.96% -0.0816 0.1106)
OKLCH	oklch(58.96% 0.137 126.4)
XYZ	xyz(15.1889, 21.5070, 4.6471)
Luminance	0.2151 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#688B1F #421F8B

analogous

#8B781F #688B1F #328B1F

triadic

#688B1F #1F688B #8B1F68

tetradic

#688B1F #1F8B78 #421F8B #8B1F32

square

#688B1F #1F8B78 #421F8B #8B1F32

split-complementary

#688B1F #1F328B #781F8B

monochromatic

#1D2709 #435914 #688B1F #8DBD2A #ABD74D

Accessibility & contrast

On white

3.96

#688B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#688B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #688B1F

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##688B1F	#FFFFFF	#000000	##000000
##688B1F	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938105

Deuteranopia (green-blind)

#8E7F2A

Tritanopia (blue-blind)

#6D8477

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #688b1f;
/* rgb */ color: rgb(104, 139, 31);
/* oklch */ color: oklch(59.0% 0.137 126.4);

Tailwind

colors: {
  custom: {
    50: '#97ad64',
    500: '#688b1f',
    950: '#000000',
  },
}

SCSS

$custom: #688b1f;
$custom-light: #97ad64;
$custom-dark: #000000;

JSON

{
  "hex": "#688b1f",
  "rgb": {
    "r": 104,
    "g": 139,
    "b": 31
  },
  "hsl": {
    "h": 79.444,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.58957,
    "c": 0.13743,
    "h": 126.4
  },
  "luminance": 0.21507
}

Semantic roles & 50–950 ramp

primary

#688B1F

secondary

#6F4CBA

accent

#41E777

background

#F9FAF6

surface

#F2F4EB

border

#CCCEC6

text

#0E1006

muted

#7E7F7A

Preview Lab

Preview with #688B1F

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

Preview Lab → · Contrast checker → · Palette generator →