#04083B#04083B

#04083B is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 18.1% C 0.096 H 268.2°. Best body text is #FFFFFF at 19.04:1 contrast (WCAG AA passes).

Color values

HEX	#04083B
RGB	rgb(4, 8, 59)
HSL	hsl(236, 87%, 12%)
HSV	hsv(236, 93%, 23%)
CMYK	cmyk(93.2%, 86.4%, 0%, 76.9%)
CIE-LAB	lab(4.65, 17.77, -31.90)
CIE-LCH	lch(4.65, 36.51, 299.12°)
OKLab	oklab(18.12% -0.003 -0.0955)
OKLCH	oklch(18.12% 0.096 268.2)
XYZ	xyz(0.9260, 0.5151, 4.1874)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04083B #3B3704

analogous

#04243B #04083B #1B043B

triadic

#04083B #3B0408 #083B04

tetradic

#04083B #3B0424 #3B3704 #043B1B

square

#04083B #3B0424 #3B3704 #043B1B

split-complementary

#04083B #3B1B04 #243B04

monochromatic

#02041D #02041D #04083B #081074 #0C18AE

Accessibility & contrast

On white

19.04

#04083B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#04083B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04083B

19.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04083B	#FFFFFF	#000000	##FFFFFF
##04083B	1.00	19.04	1.10	19.04
#FFFFFF	19.04	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00133C

Deuteranopia (green-blind)

#000D3A

Tritanopia (blue-blind)

#001721

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #04083b;
/* rgb */ color: rgb(4, 8, 59);
/* oklch */ color: oklch(18.1% 0.096 268.2);

Tailwind

colors: {
  custom: {
    50: '#4f4972',
    500: '#04083b',
    950: '#000000',
  },
}

SCSS

$custom: #04083b;
$custom-light: #4f4972;
$custom-dark: #000000;

JSON

{
  "hex": "#04083b",
  "rgb": {
    "r": 4,
    "g": 8,
    "b": 59
  },
  "hsl": {
    "h": 235.636,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.18123,
    "c": 0.0956,
    "h": 268.2
  },
  "luminance": 0.00515
}

Semantic roles & 50–950 ramp

primary

#04083B

secondary

#7D761E

accent

#EE2AFD

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020008

muted

#78777B

Preview Lab

Preview with #04083B

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

Preview Lab → · Contrast checker → · Palette generator →