#911F21#911F21

#911F21 is a dark, vivid red. Relative luminance 0.071; OKLCH L 43.2% C 0.150 H 25.4°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#911F21
RGB	rgb(145, 31, 33)
HSL	hsl(359, 65%, 35%)
HSV	hsv(359, 79%, 57%)
CMYK	cmyk(0%, 78.6%, 77.2%, 43.1%)
CIE-LAB	lab(32.06, 46.73, 28.75)
CIE-LCH	lch(32.06, 54.87, 31.60°)
OKLab	oklab(43.24% 0.1352 0.0641)
OKLCH	oklch(43.24% 0.15 25.4)
XYZ	xyz(12.4430, 7.1115, 2.1560)
Luminance	0.0711 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#911F21 #1F918F

analogous

#911F5A #911F21 #91561F

triadic

#911F21 #21911F #1F2191

tetradic

#911F21 #5A911F #1F918F #561F91

square

#911F21 #5A911F #1F918F #561F91

split-complementary

#911F21 #1F9156 #1F5A91

monochromatic

#2C090A #5F1416 #911F21 #C32A2C #DA5153

Accessibility & contrast

On white

8.67

#911F21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#911F21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #911F21

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##911F21	#FFFFFF	#000000	##FFFFFF
##911F21	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#423C20

Deuteranopia (green-blind)

#5E541D

Tritanopia (blue-blind)

#A00021

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #911f21;
/* rgb */ color: rgb(145, 31, 33);
/* oklch */ color: oklch(43.2% 0.150 25.4);

Tailwind

colors: {
  custom: {
    50: '#b9655c',
    500: '#911f21',
    950: '#000000',
  },
}

SCSS

$custom: #911f21;
$custom-light: #b9655c;
$custom-dark: #000000;

JSON

{
  "hex": "#911f21",
  "rgb": {
    "r": 145,
    "g": 31,
    "b": 33
  },
  "hsl": {
    "h": 358.947,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.43237,
    "c": 0.14965,
    "h": 25.4
  },
  "luminance": 0.0711
}

Semantic roles & 50–950 ramp

primary

#911F21

secondary

#4FBDBB

accent

#E8E540

background

#FCF6F5

surface

#F8EBE9

border

#D1C6C5

text

#130604

muted

#827A79

Preview Lab

Preview with #911F21

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

Preview Lab → · Contrast checker → · Palette generator →