#040128#040128

#040128 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.6% C 0.080 H 274.3°. Best body text is #FFFFFF at 20.19:1 contrast (WCAG AA passes).

Color values

HEX	#040128
RGB	rgb(4, 1, 40)
HSL	hsl(245, 95%, 8%)
HSV	hsv(245, 98%, 16%)
CMYK	cmyk(90%, 97.5%, 0%, 84.3%)
CIE-LAB	lab(1.81, 10.37, -22.25)
CIE-LCH	lch(1.81, 24.55, 294.97°)
OKLab	oklab(13.55% 0.0061 -0.0801)
OKLCH	oklch(13.55% 0.08 274.3)
XYZ	xyz(0.4438, 0.2007, 2.0224)
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

#040128 #252801

analogous

#011128 #040128 #170128

triadic

#040128 #280401 #012804

tetradic

#040128 #280111 #252801 #012817

square

#040128 #280111 #252801 #012817

split-complementary

#040128 #281701 #112801

monochromatic

#03011E #03011E #040128 #0A0264 #10049F

Accessibility & contrast

On white

20.19

#040128 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#040128 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040128

20.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040128	#FFFFFF	#000000	##FFFFFF
##040128	1.00	20.19	1.04	20.19
#FFFFFF	20.19	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000829

Deuteranopia (green-blind)

#000527

Tritanopia (blue-blind)

#000B13

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #040128;
/* rgb */ color: rgb(4, 1, 40);
/* oklch */ color: oklch(13.6% 0.080 274.3);

Tailwind

colors: {
  custom: {
    50: '#484762',
    500: '#040128',
    950: '#000000',
  },
}

SCSS

$custom: #040128;
$custom-light: #484762;
$custom-dark: #000000;

JSON

{
  "hex": "#040128",
  "rgb": {
    "r": 4,
    "g": 1,
    "b": 40
  },
  "hsl": {
    "h": 244.615,
    "s": 95.122,
    "l": 8.039
  },
  "oklch": {
    "l": 0.1355,
    "c": 0.08037,
    "h": 274.3
  },
  "luminance": 0.00201
}

Semantic roles & 50–950 ramp

primary

#040128

secondary

#686F16

accent

#FF29EF

background

#F4F3F5

surface

#E7E5EA

border

#C3C1C6

text

#010005

muted

#777779

Preview Lab

Preview with #040128

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

Preview Lab → · Contrast checker → · Palette generator →