#040129#040129

#040129 is a very dark, moderate blue. Relative luminance 0.002; OKLCH L 13.7% C 0.082 H 274.0°. Best body text is #FFFFFF at 20.16:1 contrast (WCAG AA passes).

Color values

HEX	#040129
RGB	rgb(4, 1, 41)
HSL	hsl(245, 95%, 8%)
HSV	hsv(245, 98%, 16%)
CMYK	cmyk(90.2%, 97.6%, 0%, 83.9%)
CIE-LAB	lab(1.88, 10.80, -22.93)
CIE-LCH	lch(1.88, 25.34, 295.23°)
OKLab	oklab(13.71% 0.0057 -0.0816)
OKLCH	oklch(13.71% 0.082 274)
XYZ	xyz(0.4610, 0.2076, 2.1132)
Luminance	0.0021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040129 #262901

analogous

#011229 #040129 #180129

triadic

#040129 #290401 #012904

tetradic

#040129 #290112 #262901 #012918

square

#040129 #290112 #262901 #012918

split-complementary

#040129 #291801 #122901

monochromatic

#03011E #03011E #040129 #0A0265 #1004A0

Accessibility & contrast

On white

20.16

#040129 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#040129 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040129

20.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040129	#FFFFFF	#000000	##FFFFFF
##040129	1.00	20.16	1.04	20.16
#FFFFFF	20.16	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00082A

Deuteranopia (green-blind)

#000528

Tritanopia (blue-blind)

#000B14

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #040129;
/* rgb */ color: rgb(4, 1, 41);
/* oklch */ color: oklch(13.7% 0.082 274.0);

Tailwind

colors: {
  custom: {
    50: '#484763',
    500: '#040129',
    950: '#000000',
  },
}

SCSS

$custom: #040129;
$custom-light: #484763;
$custom-dark: #000000;

JSON

{
  "hex": "#040129",
  "rgb": {
    "r": 4,
    "g": 1,
    "b": 41
  },
  "hsl": {
    "h": 244.5,
    "s": 95.238,
    "l": 8.235
  },
  "oklch": {
    "l": 0.13709,
    "c": 0.08178,
    "h": 274
  },
  "luminance": 0.00208
}

Semantic roles & 50–950 ramp

primary

#040129

secondary

#696F16

accent

#FF29EF

background

#F4F3F5

surface

#E7E5EA

border

#C3C1C6

text

#010005

muted

#777779

Preview Lab

Preview with #040129

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

Preview Lab → · Contrast checker → · Palette generator →