#03023B#03023B

#03023B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.7% C 0.105 H 268.2°. Best body text is #FFFFFF at 19.52:1 contrast (WCAG AA passes).

Color values

HEX	#03023B
RGB	rgb(3, 2, 59)
HSL	hsl(241, 93%, 12%)
HSV	hsv(241, 97%, 23%)
CMYK	cmyk(94.9%, 96.6%, 0%, 76.9%)
CIE-LAB	lab(3.42, 20.02, -33.91)
CIE-LCH	lch(3.42, 39.38, 300.56°)
OKLab	oklab(16.74% -0.0033 -0.1048)
OKLCH	oklch(16.74% 0.105 268.2)
XYZ	xyz(0.8484, 0.3784, 4.1652)
Luminance	0.0038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03023B #3A3B02

analogous

#021E3B #03023B #20023B

triadic

#03023B #3B0302 #023B03

tetradic

#03023B #3B021E #3A3B02 #023B20

square

#03023B #3B021E #3A3B02 #023B20

split-complementary

#03023B #3B2002 #1E3B02

monochromatic

#02011E #02011E #03023B #060476 #0906B1

Accessibility & contrast

On white

19.52

#03023B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#03023B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03023B

19.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03023B	#FFFFFF	#000000	##FFFFFF
##03023B	1.00	19.52	1.08	19.52
#FFFFFF	19.52	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F3D

Deuteranopia (green-blind)

#00093A

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #03023b;
/* rgb */ color: rgb(3, 2, 59);
/* oklch */ color: oklch(16.7% 0.105 268.2);

Tailwind

colors: {
  custom: {
    50: '#4e4672',
    500: '#03023b',
    950: '#000000',
  },
}

SCSS

$custom: #03023b;
$custom-light: #4e4672;
$custom-dark: #000000;

JSON

{
  "hex": "#03023b",
  "rgb": {
    "r": 3,
    "g": 2,
    "b": 59
  },
  "hsl": {
    "h": 241.053,
    "s": 93.443,
    "l": 11.961
  },
  "oklch": {
    "l": 0.16735,
    "c": 0.10482,
    "h": 268.2
  },
  "luminance": 0.00379
}

Semantic roles & 50–950 ramp

primary

#03023B

secondary

#7D7E1A

accent

#FF29FB

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020008

muted

#78777B

Preview Lab

Preview with #03023B

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

Preview Lab → · Contrast checker → · Palette generator →