#040720#040720

#040720 is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.5% C 0.054 H 270.8°. Best body text is #FFFFFF at 19.88:1 contrast (WCAG AA passes).

Color values

HEX	#040720
RGB	rgb(4, 7, 32)
HSL	hsl(234, 78%, 7%)
HSV	hsv(234, 88%, 13%)
CMYK	cmyk(87.5%, 78.1%, 0%, 87.5%)
CIE-LAB	lab(2.55, 4.86, -14.88)
CIE-LCH	lch(2.55, 15.65, 288.09°)
OKLab	oklab(14.49% 0.0007 -0.0536)
OKLCH	oklch(14.49% 0.054 270.8)
XYZ	xyz(0.3867, 0.2820, 1.4003)
Luminance	0.0028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.78

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040720 #201D04

analogous

#041520 #040720 #0F0420

triadic

#040720 #200407 #072004

tetradic

#040720 #200415 #201D04 #04200F

square

#040720 #200415 #201D04 #04200F

split-complementary

#040720 #200F04 #152004

monochromatic

#03061B #03061B #040720 #0B1356 #121F8D

Accessibility & contrast

On white

19.88

#040720 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#040720 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040720

19.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040720	#FFFFFF	#000000	##FFFFFF
##040720	1.00	19.88	1.06	19.88
#FFFFFF	19.88	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000B21

Deuteranopia (green-blind)

#000820

Tritanopia (blue-blind)

#000D12

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040720;
/* rgb */ color: rgb(4, 7, 32);
/* oklch */ color: oklch(14.5% 0.054 270.8);

Tailwind

colors: {
  custom: {
    50: '#484a5b',
    500: '#040720',
    950: '#000000',
  },
}

SCSS

$custom: #040720;
$custom-light: #484a5b;
$custom-dark: #000000;

JSON

{
  "hex": "#040720",
  "rgb": {
    "r": 4,
    "g": 7,
    "b": 32
  },
  "hsl": {
    "h": 233.571,
    "s": 77.778,
    "l": 7.059
  },
  "oklch": {
    "l": 0.14485,
    "c": 0.05363,
    "h": 270.8
  },
  "luminance": 0.00282
}

Semantic roles & 50–950 ramp

primary

#040720

secondary

#635B1D

accent

#E034F4

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #040720

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

Preview Lab → · Contrast checker → · Palette generator →