#040225#040225

#040225 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.4% C 0.073 H 274.8°. Best body text is #FFFFFF at 20.18:1 contrast (WCAG AA passes).

Color values

HEX	#040225
RGB	rgb(4, 2, 37)
HSL	hsl(243, 90%, 8%)
HSV	hsv(243, 95%, 15%)
CMYK	cmyk(89.2%, 94.6%, 0%, 85.5%)
CIE-LAB	lab(1.83, 8.72, -19.90)
CIE-LCH	lch(1.83, 21.72, 293.66°)
OKLab	oklab(13.45% 0.0062 -0.0732)
OKLCH	oklch(13.45% 0.073 274.8)
XYZ	xyz(0.4056, 0.2028, 1.7677)
Luminance	0.0020 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040225 #232502

analogous

#021125 #040225 #160225

triadic

#040225 #250402 #022504

tetradic

#040225 #250211 #232502 #022516

square

#040225 #250211 #232502 #022516

split-complementary

#040225 #251602 #112502

monochromatic

#03021D #03021D #040225 #0A055F #110899

Accessibility & contrast

On white

20.18

#040225 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#040225 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040225

20.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040225	#FFFFFF	#000000	##FFFFFF
##040225	1.00	20.18	1.04	20.18
#FFFFFF	20.18	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000826

Deuteranopia (green-blind)

#000524

Tritanopia (blue-blind)

#000B12

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #040225;
/* rgb */ color: rgb(4, 2, 37);
/* oklch */ color: oklch(13.4% 0.073 274.8);

Tailwind

colors: {
  custom: {
    50: '#48475f',
    500: '#040225',
    950: '#000000',
  },
}

SCSS

$custom: #040225;
$custom-light: #48475f;
$custom-dark: #000000;

JSON

{
  "hex": "#040225",
  "rgb": {
    "r": 4,
    "g": 2,
    "b": 37
  },
  "hsl": {
    "h": 243.429,
    "s": 89.744,
    "l": 7.647
  },
  "oklch": {
    "l": 0.13449,
    "c": 0.07349,
    "h": 274.8
  },
  "luminance": 0.00203
}

Semantic roles & 50–950 ramp

primary

#040225

secondary

#666A18

accent

#FF29F3

background

#F4F4F5

surface

#E6E6E9

border

#C2C2C5

text

#010004

muted

#777779

Preview Lab

Preview with #040225

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

Preview Lab → · Contrast checker → · Palette generator →