#665B1F#665B1F

#665B1F is a mid, moderate yellow. Relative luminance 0.104; OKLCH L 46.9% C 0.080 H 98.8°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#665B1F
RGB	rgb(102, 91, 31)
HSL	hsl(51, 53%, 26%)
HSV	hsv(51, 70%, 40%)
CMYK	cmyk(0%, 10.8%, 69.6%, 60%)
CIE-LAB	lab(38.56, -3.40, 35.00)
CIE-LCH	lch(38.56, 35.16, 95.55°)
OKLab	oklab(46.92% -0.0123 0.0792)
OKLCH	oklch(46.92% 0.08 98.8)
XYZ	xyz(9.4683, 10.4063, 2.8059)
Luminance	0.1041 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665B1F #1F2A66

analogous

#66371F #665B1F #4D661F

triadic

#665B1F #1F665B #5B1F66

tetradic

#665B1F #1F6637 #1F2A66 #661F4D

square

#665B1F #1F6637 #1F2A66 #661F4D

split-complementary

#665B1F #1F4D66 #371F66

monochromatic

#171507 #373111 #665B1F #95852D #C4AF3C

Accessibility & contrast

On white

6.82

#665B1F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#665B1F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665B1F

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665B1F	#FFFFFF	#000000	##FFFFFF
##665B1F	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645918

Deuteranopia (green-blind)

#675C22

Tritanopia (blue-blind)

#6E544E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #665b1f;
/* rgb */ color: rgb(102, 91, 31);
/* oklch */ color: oklch(46.9% 0.080 98.8);

Tailwind

colors: {
  custom: {
    50: '#94895e',
    500: '#665b1f',
    950: '#000000',
  },
}

SCSS

$custom: #665b1f;
$custom-light: #94895e;
$custom-dark: #000000;

JSON

{
  "hex": "#665b1f",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 31
  },
  "hsl": {
    "h": 50.704,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.46921,
    "c": 0.08017,
    "h": 98.8
  },
  "luminance": 0.10406
}

Semantic roles & 50–950 ramp

primary

#665B1F

secondary

#46539A

accent

#62DD4B

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #665B1F

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

Preview Lab → · Contrast checker → · Palette generator →