#666510#666510

#666510 is a mid, moderate yellow. Relative luminance 0.122; OKLCH L 49.2% C 0.100 H 108.9°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#666510
RGB	rgb(102, 101, 16)
HSL	hsl(59, 73%, 23%)
HSV	hsv(59, 84%, 40%)
CMYK	cmyk(0%, 1%, 84.3%, 60%)
CIE-LAB	lab(41.48, -9.96, 43.82)
CIE-LCH	lch(41.48, 44.94, 102.81°)
OKLab	oklab(49.22% -0.0324 0.0949)
OKLCH	oklch(49.22% 0.1 108.9)
XYZ	xyz(10.2271, 12.1699, 2.3004)
Luminance	0.1217 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666510 #101166

analogous

#663A10 #666510 #3C6610

triadic

#666510 #106665 #651066

tetradic

#666510 #10663A #101166 #66103C

square

#666510 #10663A #101166 #66103C

split-complementary

#666510 #103C66 #3A1066

monochromatic

#1A1A04 #313108 #666510 #9B9918 #D0CE21

Accessibility & contrast

On white

6.12

#666510 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#666510 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666510

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666510	#FFFFFF	#000000	##FFFFFF
##666510	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6000

Deuteranopia (green-blind)

#6F6318

Tritanopia (blue-blind)

#6E5E56

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #666510;
/* rgb */ color: rgb(102, 101, 16);
/* oklch */ color: oklch(49.2% 0.100 108.9);

Tailwind

colors: {
  custom: {
    50: '#959058',
    500: '#666510',
    950: '#000000',
  },
}

SCSS

$custom: #666510;
$custom-light: #959058;
$custom-dark: #000000;

JSON

{
  "hex": "#666510",
  "rgb": {
    "r": 102,
    "g": 101,
    "b": 16
  },
  "hsl": {
    "h": 59.302,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.49215,
    "c": 0.10033,
    "h": 108.9
  },
  "luminance": 0.1217
}

Semantic roles & 50–950 ramp

primary

#666510

secondary

#33359E

accent

#3AF038

background

#F9F8F5

surface

#F2F0E9

border

#CCCBC5

text

#0E0C04

muted

#7E7D79

Preview Lab

Preview with #666510

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

Preview Lab → · Contrast checker → · Palette generator →