#040507#040507

#040507 is a very dark, near-neutral blue. Relative luminance 0.002; OKLCH L 11.4% C 0.007 H 261.0°. Best body text is #FFFFFF at 20.39:1 contrast (WCAG AA passes).

Color values

HEX	#040507
RGB	rgb(4, 5, 7)
HSL	hsl(220, 27%, 2%)
HSV	hsv(220, 43%, 3%)
CMYK	cmyk(42.9%, 28.6%, 0%, 97.3%)
CIE-LAB	lab(1.35, 0.02, -0.85)
CIE-LCH	lch(1.35, 0.85, 271.15°)
OKLab	oklab(11.44% -0.0011 -0.0068)
OKLCH	oklch(11.44% 0.007 261)
XYZ	xyz(0.1427, 0.1497, 0.2223)
Luminance	0.0015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040507 #070604

analogous

#040707 #040507 #050407

triadic

#040507 #070405 #050704

tetradic

#040507 #070407 #070604 #040705

square

#040507 #070407 #070604 #040705

split-complementary

#040507 #070504 #070704

monochromatic

#0B0E13 #0B0E13 #0B0E13 #1A212E #313D55

Accessibility & contrast

On white

20.39

#040507 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#040507 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040507

20.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040507	#FFFFFF	#000000	##FFFFFF
##040507	1.00	20.39	1.03	20.39
#FFFFFF	20.39	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040507

Deuteranopia (green-blind)

#040507

Tritanopia (blue-blind)

#030506

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #040507;
/* rgb */ color: rgb(4, 5, 7);
/* oklch */ color: oklch(11.4% 0.007 261.0);

Tailwind

colors: {
  custom: {
    50: '#48494a',
    500: '#040507',
    950: '#000000',
  },
}

SCSS

$custom: #040507;
$custom-light: #48494a;
$custom-dark: #000000;

JSON

{
  "hex": "#040507",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 7
  },
  "hsl": {
    "h": 220,
    "s": 27.273,
    "l": 2.157
  },
  "oklch": {
    "l": 0.11439,
    "c": 0.00689,
    "h": 261
  },
  "luminance": 0.0015
}

Semantic roles & 50–950 ramp

primary

#040507

secondary

#3D372A

accent

#A464C4

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #040507

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

Preview Lab → · Contrast checker → · Palette generator →