#B3781F#B3781F

#B3781F is a mid, vivid orange. Relative luminance 0.231; OKLCH L 62.0% C 0.122 H 71.7°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#B3781F
RGB	rgb(179, 120, 31)
HSL	hsl(36, 70%, 41%)
HSV	hsv(36, 83%, 70%)
CMYK	cmyk(0%, 33%, 82.7%, 29.8%)
CIE-LAB	lab(55.19, 15.85, 54.05)
CIE-LCH	lch(55.19, 56.33, 73.66°)
OKLab	oklab(61.96% 0.0384 0.116)
OKLCH	oklch(61.96% 0.122 71.7)
XYZ	xyz(25.5562, 23.1179, 4.4123)
Luminance	0.2312 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3781F #1F5AB3

analogous

#B32E1F #B3781F #A4B31F

triadic

#B3781F #1FB378 #781FB3

tetradic

#B3781F #1FB32E #1F5AB3 #B31FA4

square

#B3781F #1FB32E #1F5AB3 #B31FA4

split-complementary

#B3781F #1FA4B3 #2E1FB3

monochromatic

#4B320D #7F5516 #B3781F #DC9933 #E5B368

Accessibility & contrast

On white

3.73

#B3781F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#B3781F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3781F

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3781F	#FFFFFF	#000000	##000000
##B3781F	1.00	3.73	5.62	5.62
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C7C0C

Deuteranopia (green-blind)

#9A8A22

Tritanopia (blue-blind)

#C46967

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #b3781f;
/* rgb */ color: rgb(179, 120, 31);
/* oklch */ color: oklch(62.0% 0.122 71.7);

Tailwind

colors: {
  custom: {
    50: '#cf9f63',
    500: '#b3781f',
    950: '#000000',
  },
}

SCSS

$custom: #b3781f;
$custom-light: #cf9f63;
$custom-dark: #000000;

JSON

{
  "hex": "#b3781f",
  "rgb": {
    "r": 179,
    "g": 120,
    "b": 31
  },
  "hsl": {
    "h": 36.081,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.61955,
    "c": 0.12224,
    "h": 71.7
  },
  "luminance": 0.23116
}

Semantic roles & 50–950 ramp

primary

#B3781F

secondary

#648CCA

accent

#82ED3B

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E06

muted

#837E7A

Preview Lab

Preview with #B3781F

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

Preview Lab → · Contrast checker → · Palette generator →