#AC4021#AC4021

#AC4021 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.7% C 0.148 H 36.4°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#AC4021
RGB	rgb(172, 64, 33)
HSL	hsl(13, 68%, 40%)
HSV	hsv(13, 81%, 67%)
CMYK	cmyk(0%, 62.8%, 80.8%, 32.5%)
CIE-LAB	lab(42.08, 42.65, 40.72)
CIE-LCH	lch(42.08, 58.97, 43.67°)
OKLab	oklab(51.68% 0.1195 0.088)
OKLCH	oklch(51.68% 0.148 36.4)
XYZ	xyz(19.1233, 12.5500, 2.8540)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC4021 #218DAC

analogous

#AC2148 #AC4021 #AC8521

triadic

#AC4021 #21AC40 #4021AC

tetradic

#AC4021 #48AC21 #218DAC #8521AC

square

#AC4021 #48AC21 #218DAC #8521AC

split-complementary

#AC4021 #21AC85 #2148AC

monochromatic

#451A0D #792D17 #AC4021 #D85732 #E28166

Accessibility & contrast

On white

5.98

#AC4021 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#AC4021 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC4021

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC4021	#FFFFFF	#000000	##FFFFFF
##AC4021	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F541C

Deuteranopia (green-blind)

#796C1D

Tritanopia (blue-blind)

#BD243A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac4021;
/* rgb */ color: rgb(172, 64, 33);
/* oklch */ color: oklch(51.7% 0.148 36.4);

Tailwind

colors: {
  custom: {
    50: '#cd795f',
    500: '#ac4021',
    950: '#000000',
  },
}

SCSS

$custom: #ac4021;
$custom-light: #cd795f;
$custom-dark: #000000;

JSON

{
  "hex": "#ac4021",
  "rgb": {
    "r": 172,
    "g": 64,
    "b": 33
  },
  "hsl": {
    "h": 13.381,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.51683,
    "c": 0.1484,
    "h": 36.4
  },
  "luminance": 0.12547
}

Semantic roles & 50–950 ramp

primary

#AC4021

secondary

#62B0C7

accent

#C4EB3D

background

#FDF7F5

surface

#FBEEE9

border

#D4C9C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AC4021

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

Preview Lab → · Contrast checker → · Palette generator →