#66390F#66390F

#66390F is a dark, moderate orange. Relative luminance 0.058; OKLCH L 39.3% C 0.083 H 58.6°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#66390F
RGB	rgb(102, 57, 15)
HSL	hsl(29, 74%, 23%)
HSV	hsv(29, 85%, 40%)
CMYK	cmyk(0%, 44.1%, 85.3%, 60%)
CIE-LAB	lab(28.87, 16.49, 32.87)
CIE-LCH	lch(28.87, 36.77, 63.36°)
OKLab	oklab(39.29% 0.0433 0.071)
OKLCH	oklch(39.29% 0.083 58.6)
XYZ	xyz(7.0295, 5.7863, 1.1985)
Luminance	0.0579 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66390F #0F3C66

analogous

#660F10 #66390F #66640F

triadic

#66390F #0F6639 #390F66

tetradic

#66390F #10660F #0F3C66 #640F66

square

#66390F #10660F #0F3C66 #640F66

split-complementary

#66390F #0F6664 #0F1066

monochromatic

#1B0F04 #311B07 #66390F #9B5717 #D1751F

Accessibility & contrast

On white

9.73

#66390F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#66390F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66390F

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66390F	#FFFFFF	#000000	##FFFFFF
##66390F	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473E08

Deuteranopia (green-blind)

#51480F

Tritanopia (blue-blind)

#702F31

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #66390f;
/* rgb */ color: rgb(102, 57, 15);
/* oklch */ color: oklch(39.3% 0.083 58.6);

Tailwind

colors: {
  custom: {
    50: '#976f51',
    500: '#66390f',
    950: '#000000',
  },
}

SCSS

$custom: #66390f;
$custom-light: #976f51;
$custom-dark: #000000;

JSON

{
  "hex": "#66390f",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 15
  },
  "hsl": {
    "h": 28.966,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.39287,
    "c": 0.08319,
    "h": 58.6
  },
  "luminance": 0.05786
}

Semantic roles & 50–950 ramp

primary

#66390F

secondary

#326A9F

accent

#97F137

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #66390F

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

Preview Lab → · Contrast checker → · Palette generator →