#665B18#665B18

#665B18 is a mid, moderate yellow. Relative luminance 0.104; OKLCH L 46.9% C 0.086 H 99.7°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#665B18
RGB	rgb(102, 91, 24)
HSL	hsl(52, 62%, 25%)
HSV	hsv(52, 76%, 40%)
CMYK	cmyk(0%, 10.8%, 76.5%, 60%)
CIE-LAB	lab(38.50, -3.82, 38.12)
CIE-LCH	lch(38.50, 38.31, 95.73°)
OKLab	oklab(46.86% -0.0144 0.0845)
OKLCH	oklch(46.86% 0.086 99.7)
XYZ	xyz(9.3859, 10.3733, 2.3718)
Luminance	0.1037 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665B18 #182366

analogous

#663418 #665B18 #4A6618

triadic

#665B18 #18665B #5B1866

tetradic

#665B18 #186634 #182366 #66184A

square

#665B18 #186634 #182366 #66184A

split-complementary

#665B18 #184A66 #341866

monochromatic

#191606 #342F0C #665B18 #988724 #C9B32F

Accessibility & contrast

On white

6.83

#665B18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#665B18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665B18

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665B18	#FFFFFF	#000000	##FFFFFF
##665B18	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64580D

Deuteranopia (green-blind)

#675C1C

Tritanopia (blue-blind)

#6E544E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #665b18;
/* rgb */ color: rgb(102, 91, 24);
/* oklch */ color: oklch(46.9% 0.086 99.7);

Tailwind

colors: {
  custom: {
    50: '#95895a',
    500: '#665b18',
    950: '#000000',
  },
}

SCSS

$custom: #665b18;
$custom-light: #95895a;
$custom-dark: #000000;

JSON

{
  "hex": "#665b18",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 24
  },
  "hsl": {
    "h": 51.538,
    "s": 61.905,
    "l": 24.706
  },
  "oklch": {
    "l": 0.46857,
    "c": 0.08568,
    "h": 99.7
  },
  "luminance": 0.10373
}

Semantic roles & 50–950 ramp

primary

#665B18

secondary

#3E4B9C

accent

#5AE543

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0E0B04

muted

#7E7C79

Preview Lab

Preview with #665B18

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

Preview Lab → · Contrast checker → · Palette generator →