#400703#400703

#400703 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.2% C 0.087 H 30.4°. Best body text is #FFFFFF at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#400703
RGB	rgb(64, 7, 3)
HSL	hsl(4, 91%, 13%)
HSV	hsv(4, 95%, 25%)
CMYK	cmyk(0%, 89.1%, 95.3%, 74.9%)
CIE-LAB	lab(10.91, 26.64, 15.80)
CIE-LCH	lch(10.91, 30.97, 30.67°)
OKLab	oklab(24.23% 0.0752 0.0441)
OKLCH	oklch(24.23% 0.087 30.4)
XYZ	xyz(2.2070, 1.2489, 0.2110)
Luminance	0.0125 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400703 #033C40

analogous

#40031D #400703 #402503

triadic

#400703 #034007 #070340

tetradic

#400703 #1D4003 #033C40 #250340

square

#400703 #1D4003 #033C40 #250340

split-complementary

#400703 #034025 #031D40

monochromatic

#1D0301 #1D0301 #400703 #7A0D06 #B51408

Accessibility & contrast

On white

16.80

#400703 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#400703 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400703

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400703	#FFFFFF	#000000	##FFFFFF
##400703	1.00	16.80	1.25	16.80
#FFFFFF	16.80	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191502

Deuteranopia (green-blind)

#272201

Tritanopia (blue-blind)

#480007

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #400703;
/* rgb */ color: rgb(64, 7, 3);
/* oklch */ color: oklch(24.2% 0.087 30.4);

Tailwind

colors: {
  custom: {
    50: '#7a4d48',
    500: '#400703',
    950: '#000000',
  },
}

SCSS

$custom: #400703;
$custom-light: #7a4d48;
$custom-dark: #000000;

JSON

{
  "hex": "#400703",
  "rgb": {
    "r": 64,
    "g": 7,
    "b": 3
  },
  "hsl": {
    "h": 3.934,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.24226,
    "c": 0.08713,
    "h": 30.4
  },
  "luminance": 0.01249
}

Semantic roles & 50–950 ramp

primary

#400703

secondary

#1D7B82

accent

#F1FF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #400703

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

Preview Lab → · Contrast checker → · Palette generator →