#B3711F#B3711F

#B3711F is a mid, vivid orange. Relative luminance 0.215; OKLCH L 60.6% C 0.123 H 66.2°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#B3711F
RGB	rgb(179, 113, 31)
HSL	hsl(33, 70%, 41%)
HSV	hsv(33, 83%, 70%)
CMYK	cmyk(0%, 36.9%, 82.7%, 29.8%)
CIE-LAB	lab(53.49, 19.75, 52.54)
CIE-LCH	lch(53.49, 56.13, 69.40°)
OKLab	oklab(60.63% 0.0498 0.1127)
OKLCH	oklch(60.63% 0.123 66.2)
XYZ	xyz(24.7449, 21.4954, 4.1419)
Luminance	0.2149 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3711F #1F61B3

analogous

#B3271F #B3711F #ABB31F

triadic

#B3711F #1FB371 #711FB3

tetradic

#B3711F #1FB327 #1F61B3 #B31FAB

square

#B3711F #1FB327 #1F61B3 #B31FAB

split-complementary

#B3711F #1FABB3 #271FB3

monochromatic

#4B2F0D #7F5016 #B3711F #DC9133 #E5AD68

Accessibility & contrast

On white

3.96

#B3711F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#B3711F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #B3711F

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3711F	#FFFFFF	#000000	##000000
##B3711F	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86770F

Deuteranopia (green-blind)

#968621

Tritanopia (blue-blind)

#C46161

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #b3711f;
/* rgb */ color: rgb(179, 113, 31);
/* oklch */ color: oklch(60.6% 0.123 66.2);

Tailwind

colors: {
  custom: {
    50: '#d09a62',
    500: '#b3711f',
    950: '#000000',
  },
}

SCSS

$custom: #b3711f;
$custom-light: #d09a62;
$custom-dark: #000000;

JSON

{
  "hex": "#b3711f",
  "rgb": {
    "r": 179,
    "g": 113,
    "b": 31
  },
  "hsl": {
    "h": 33.243,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.60629,
    "c": 0.12327,
    "h": 66.2
  },
  "luminance": 0.21493
}

Semantic roles & 50–950 ramp

primary

#B3711F

secondary

#6491CA

accent

#8AED3B

background

#FDF9F6

surface

#FBF2EB

border

#D4CCC6

text

#150E05

muted

#837E7A

Preview Lab

Preview with #B3711F

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

Preview Lab → · Contrast checker → · Palette generator →