#1F050A#1F050A

#1F050A is a very dark, muted red. Relative luminance 0.004; OKLCH L 16.8% C 0.047 H 10.3°. Best body text is #FFFFFF at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F050A
RGB	rgb(31, 5, 10)
HSL	hsl(348, 72%, 7%)
HSV	hsv(348, 84%, 12%)
CMYK	cmyk(0%, 83.9%, 67.7%, 87.8%)
CIE-LAB	lab(3.81, 11.20, 1.81)
CIE-LCH	lch(3.81, 11.34, 9.16°)
OKLab	oklab(16.76% 0.0463 0.0084)
OKLCH	oklch(16.76% 0.047 10.3)
XYZ	xyz(0.6742, 0.4218, 0.3330)
Luminance	0.0042 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F050A #051F1A

analogous

#1F0517 #1F050A #1F0D05

triadic

#1F050A #0A1F05 #050A1F

tetradic

#1F050A #171F05 #051F1A #0D051F

square

#1F050A #171F05 #051F1A #0D051F

split-complementary

#1F050A #051F0D #05171F

monochromatic

#1A0408 #1A0408 #1F050A #540E1B #88162C

Accessibility & contrast

On white

19.37

#1F050A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#1F050A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F050A

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F050A	#FFFFFF	#000000	##FFFFFF
##1F050A	1.00	19.37	1.08	19.37
#FFFFFF	19.37	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0A0A

Deuteranopia (green-blind)

#111009

Tritanopia (blue-blind)

#230307

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #1f050a;
/* rgb */ color: rgb(31, 5, 10);
/* oklch */ color: oklch(16.8% 0.047 10.3);

Tailwind

colors: {
  custom: {
    50: '#5a494b',
    500: '#1f050a',
    950: '#000000',
  },
}

SCSS

$custom: #1f050a;
$custom-light: #5a494b;
$custom-dark: #000000;

JSON

{
  "hex": "#1f050a",
  "rgb": {
    "r": 31,
    "g": 5,
    "b": 10
  },
  "hsl": {
    "h": 348.462,
    "s": 72.222,
    "l": 7.059
  },
  "oklch": {
    "l": 0.16757,
    "c": 0.0471,
    "h": 10.3
  },
  "luminance": 0.00422
}

Semantic roles & 50–950 ramp

primary

#1F050A

secondary

#206054

accent

#EFCC39

background

#F5F4F4

surface

#E9E6E7

border

#C5C2C3

text

#040001

muted

#797777

Preview Lab

Preview with #1F050A

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

Preview Lab → · Contrast checker → · Palette generator →