#040525#040525

#040525 is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 14.5% C 0.067 H 272.4°. Best body text is #FFFFFF at 19.93:1 contrast (WCAG AA passes).

Color values

HEX	#040525
RGB	rgb(4, 5, 37)
HSL	hsl(238, 80%, 8%)
HSV	hsv(238, 89%, 15%)
CMYK	cmyk(89.2%, 86.5%, 0%, 85.5%)
CIE-LAB	lab(2.42, 7.52, -18.99)
CIE-LCH	lch(2.42, 20.42, 291.61°)
OKLab	oklab(14.46% 0.0028 -0.0664)
OKLCH	oklch(14.46% 0.067 272.4)
XYZ	xyz(0.4382, 0.2679, 1.7785)
Luminance	0.0027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040525 #252404

analogous

#041525 #040525 #130425

triadic

#040525 #250405 #052504

tetradic

#040525 #250415 #252404 #042513

square

#040525 #250415 #252404 #042513

split-complementary

#040525 #251304 #152504

monochromatic

#03041C #03041C #040525 #0A0C5C #101493

Accessibility & contrast

On white

19.93

#040525 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#040525 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040525

19.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040525	#FFFFFF	#000000	##FFFFFF
##040525	1.00	19.93	1.05	19.93
#FFFFFF	19.93	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000A26

Deuteranopia (green-blind)

#000724

Tritanopia (blue-blind)

#000D13

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040525;
/* rgb */ color: rgb(4, 5, 37);
/* oklch */ color: oklch(14.5% 0.067 272.4);

Tailwind

colors: {
  custom: {
    50: '#48495f',
    500: '#040525',
    950: '#000000',
  },
}

SCSS

$custom: #040525;
$custom-light: #48495f;
$custom-dark: #000000;

JSON

{
  "hex": "#040525",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 37
  },
  "hsl": {
    "h": 238.182,
    "s": 80.488,
    "l": 8.039
  },
  "oklch": {
    "l": 0.14459,
    "c": 0.0665,
    "h": 272.4
  },
  "luminance": 0.00268
}

Semantic roles & 50–950 ramp

primary

#040525

secondary

#68661D

accent

#F131F7

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#010004

muted

#777779

Preview Lab

Preview with #040525

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

Preview Lab → · Contrast checker → · Palette generator →