#3A100F#3A100F

#3A100F is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.3% C 0.067 H 24.8°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#3A100F
RGB	rgb(58, 16, 15)
HSL	hsl(1, 59%, 14%)
HSV	hsv(1, 74%, 23%)
CMYK	cmyk(0%, 72.4%, 74.1%, 77.3%)
CIE-LAB	lab(11.31, 20.71, 10.95)
CIE-LCH	lch(11.31, 23.42, 27.88°)
OKLab	oklab(24.34% 0.0608 0.0281)
OKLCH	oklch(24.34% 0.067 24.8)
XYZ	xyz(2.0166, 1.3049, 0.5975)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A100F #0F393A

analogous

#3A0F24 #3A100F #3A260F

triadic

#3A100F #0F3A10 #100F3A

tetradic

#3A100F #243A0F #0F393A #260F3A

square

#3A100F #243A0F #0F393A #260F3A

split-complementary

#3A100F #0F3A26 #0F243A

monochromatic

#180706 #180706 #3A100F #6B1D1C #9B2B28

Accessibility & contrast

On white

16.65

#3A100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3A100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A100F

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A100F	#FFFFFF	#000000	##FFFFFF
##3A100F	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180F

Deuteranopia (green-blind)

#25210E

Tritanopia (blue-blind)

#400710

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3a100f;
/* rgb */ color: rgb(58, 16, 15);
/* oklch */ color: oklch(24.3% 0.067 24.8);

Tailwind

colors: {
  custom: {
    50: '#74504d',
    500: '#3a100f',
    950: '#000000',
  },
}

SCSS

$custom: #3a100f;
$custom-light: #74504d;
$custom-dark: #000000;

JSON

{
  "hex": "#3a100f",
  "rgb": {
    "r": 58,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 1.395,
    "s": 58.904,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24338,
    "c": 0.06697,
    "h": 24.8
  },
  "luminance": 0.01305
}

Semantic roles & 50–950 ramp

primary

#3A100F

secondary

#307374

accent

#DEE246

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090201

muted

#7B7877

Preview Lab

Preview with #3A100F

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

Preview Lab → · Contrast checker → · Palette generator →