#5A101E#5A101E

#5A101E is a dark, moderate red. Relative luminance 0.026; OKLCH L 31.1% C 0.105 H 15.6°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#5A101E
RGB	rgb(90, 16, 30)
HSL	hsl(349, 70%, 21%)
HSV	hsv(349, 82%, 35%)
CMYK	cmyk(0%, 82.2%, 66.7%, 64.7%)
CIE-LAB	lab(18.53, 33.84, 11.67)
CIE-LCH	lch(18.53, 35.79, 19.03°)
OKLab	oklab(31.1% 0.1013 0.0284)
OKLCH	oklch(31.1% 0.105 15.6)
XYZ	xyz(4.6366, 2.6387, 1.4932)
Luminance	0.0264 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A101E #105A4C

analogous

#5A1043 #5A101E #5A2710

triadic

#5A101E #1E5A10 #101E5A

tetradic

#5A101E #435A10 #105A4C #27105A

square

#5A101E #435A10 #105A4C #27105A

split-complementary

#5A101E #105A27 #10435A

monochromatic

#1A0509 #26070D #5A101E #8E192F #C22241

Accessibility & contrast

On white

13.75

#5A101E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#5A101E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #5A101E

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A101E	#FFFFFF	#000000	##FFFFFF
##5A101E	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25231E

Deuteranopia (green-blind)

#38331C

Tritanopia (blue-blind)

#630016

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #5a101e;
/* rgb */ color: rgb(90, 16, 30);
/* oklch */ color: oklch(31.1% 0.105 15.6);

Tailwind

colors: {
  custom: {
    50: '#8e5659',
    500: '#5a101e',
    950: '#000000',
  },
}

SCSS

$custom: #5a101e;
$custom-light: #8e5659;
$custom-dark: #000000;

JSON

{
  "hex": "#5a101e",
  "rgb": {
    "r": 90,
    "g": 16,
    "b": 30
  },
  "hsl": {
    "h": 348.649,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31097,
    "c": 0.10521,
    "h": 15.6
  },
  "luminance": 0.02638
}

Semantic roles & 50–950 ramp

primary

#5A101E

secondary

#339381

accent

#EDCB3B

background

#F9F5F5

surface

#F1E9E9

border

#CBC5C5

text

#0D0303

muted

#7E7878

Preview Lab

Preview with #5A101E

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

Preview Lab → · Contrast checker → · Palette generator →