#03123A#03123A

#03123A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.1% C 0.081 H 263.2°. Best body text is #FFFFFF at 18.24:1 contrast (WCAG AA passes).

Color values

HEX	#03123A
RGB	rgb(3, 18, 58)
HSL	hsl(224, 90%, 12%)
HSV	hsv(224, 95%, 23%)
CMYK	cmyk(94.8%, 69%, 0%, 77.3%)
CIE-LAB	lab(6.84, 11.74, -27.63)
CIE-LCH	lch(6.84, 30.02, 293.02°)
OKLab	oklab(20.08% -0.0096 -0.0802)
OKLCH	oklch(20.08% 0.081 263.2)
XYZ	xyz(1.0173, 0.7573, 4.0947)
Luminance	0.0076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03123A #3A2B03

analogous

#032E3A #03123A #0F033A

triadic

#03123A #3A0312 #123A03

tetradic

#03123A #3A032E #3A2B03 #033A0F

square

#03123A #3A032E #3A2B03 #033A0F

split-complementary

#03123A #3A0F03 #2E3A03

monochromatic

#02091D #02091D #03123A #062474 #0936AE

Accessibility & contrast

On white

18.24

#03123A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#03123A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03123A

18.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03123A	#FFFFFF	#000000	##FFFFFF
##03123A	1.00	18.24	1.15	18.24
#FFFFFF	18.24	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#001C23

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #03123a;
/* rgb */ color: rgb(3, 18, 58);
/* oklch */ color: oklch(20.1% 0.081 263.2);

Tailwind

colors: {
  custom: {
    50: '#4e4f71',
    500: '#03123a',
    950: '#000000',
  },
}

SCSS

$custom: #03123a;
$custom-light: #4e4f71;
$custom-dark: #000000;

JSON

{
  "hex": "#03123a",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 58
  },
  "hsl": {
    "h": 223.636,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.20075,
    "c": 0.08082,
    "h": 263.2
  },
  "luminance": 0.00757
}

Semantic roles & 50–950 ramp

primary

#03123A

secondary

#7D621C

accent

#C529FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #03123A

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

Preview Lab → · Contrast checker → · Palette generator →