#A01B15#A01B15

#A01B15 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.7% C 0.169 H 28.7°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#A01B15
RGB	rgb(160, 27, 21)
HSL	hsl(3, 77%, 35%)
HSV	hsv(3, 87%, 63%)
CMYK	cmyk(0%, 83.1%, 86.9%, 37.3%)
CIE-LAB	lab(34.63, 52.13, 39.10)
CIE-LCH	lch(34.63, 65.17, 36.87°)
OKLab	oklab(45.66% 0.148 0.081)
OKLCH	oklch(45.66% 0.169 28.7)
XYZ	xyz(15.0264, 8.3141, 1.5229)
Luminance	0.0831 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01B15 #159AA0

analogous

#A01554 #A01B15 #A06015

triadic

#A01B15 #15A01B #1B15A0

tetradic

#A01B15 #54A015 #159AA0 #6015A0

square

#A01B15 #54A015 #159AA0 #6015A0

split-complementary

#A01B15 #15A060 #1554A0

monochromatic

#340907 #6A120E #A01B15 #D6241C #E74F48

Accessibility & contrast

On white

7.89

#A01B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A01B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01B15

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01B15	#FFFFFF	#000000	##FFFFFF
##A01B15	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F12

Deuteranopia (green-blind)

#675C0C

Tritanopia (blue-blind)

#B1001C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01b15;
/* rgb */ color: rgb(160, 27, 21);
/* oklch */ color: oklch(45.7% 0.169 28.7);

Tailwind

colors: {
  custom: {
    50: '#c66654',
    500: '#a01b15',
    950: '#000000',
  },
}

SCSS

$custom: #a01b15;
$custom-light: #c66654;
$custom-dark: #000000;

JSON

{
  "hex": "#a01b15",
  "rgb": {
    "r": 160,
    "g": 27,
    "b": 21
  },
  "hsl": {
    "h": 2.59,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.45658,
    "c": 0.16871,
    "h": 28.7
  },
  "luminance": 0.08312
}

Semantic roles & 50–950 ramp

primary

#A01B15

secondary

#49C3C8

accent

#EBF334

background

#FDF6F5

surface

#FAEBE8

border

#D3C6C4

text

#150703

muted

#837A78

Preview Lab

Preview with #A01B15

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

Preview Lab → · Contrast checker → · Palette generator →