#04053F#04053F

#04053F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.105 H 268.5°. Best body text is #FFFFFF at 19.12:1 contrast (WCAG AA passes).

Color values

HEX	#04053F
RGB	rgb(4, 5, 63)
HSL	hsl(239, 88%, 13%)
HSV	hsv(239, 94%, 25%)
CMYK	cmyk(93.7%, 92.1%, 0%, 75.3%)
CIE-LAB	lab(4.45, 21.44, -35.11)
CIE-LCH	lch(4.45, 41.14, 301.41°)
OKLab	oklab(18.08% -0.0028 -0.1052)
OKLCH	oklch(18.08% 0.105 268.5)
XYZ	xyz(1.0012, 0.4931, 4.7441)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04053F #3F3E04

analogous

#04223F #04053F #20043F

triadic

#04053F #3F0405 #053F04

tetradic

#04053F #3F0422 #3F3E04 #043F20

square

#04053F #3F0422 #3F3E04 #043F20

split-complementary

#04053F #3F2004 #223F04

monochromatic

#02021D #02021D #04053F #080A79 #0B0EB2

Accessibility & contrast

On white

19.12

#04053F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#04053F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04053F

19.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04053F	#FFFFFF	#000000	##FFFFFF
##04053F	1.00	19.12	1.10	19.12
#FFFFFF	19.12	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001241

Deuteranopia (green-blind)

#000C3E

Tritanopia (blue-blind)

#001722

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #04053f;
/* rgb */ color: rgb(4, 5, 63);
/* oklch */ color: oklch(18.1% 0.105 268.5);

Tailwind

colors: {
  custom: {
    50: '#514875',
    500: '#04053f',
    950: '#000000',
  },
}

SCSS

$custom: #04053f;
$custom-light: #514875;
$custom-dark: #000000;

JSON

{
  "hex": "#04053f",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 63
  },
  "hsl": {
    "h": 238.983,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.18084,
    "c": 0.10526,
    "h": 268.5
  },
  "luminance": 0.00493
}

Semantic roles & 50–950 ramp

primary

#04053F

secondary

#807F1E

accent

#FB2AFE

background

#F4F4F7

surface

#E7E6ED

border

#C3C2C8

text

#030008

muted

#78777B

Preview Lab

Preview with #04053F

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

Preview Lab → · Contrast checker → · Palette generator →