#03123F#03123F

#03123F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.6% C 0.089 H 263.9°. Best body text is #FFFFFF at 18.07:1 contrast (WCAG AA passes).

Color values

HEX	#03123F
RGB	rgb(3, 18, 63)
HSL	hsl(225, 91%, 13%)
HSV	hsv(225, 95%, 25%)
CMYK	cmyk(95.2%, 71.4%, 0%, 75.3%)
CIE-LAB	lab(7.32, 14.28, -30.43)
CIE-LCH	lch(7.32, 33.61, 295.14°)
OKLab	oklab(20.63% -0.0094 -0.0882)
OKLCH	oklch(20.63% 0.089 263.9)
XYZ	xyz(1.1507, 0.8107, 4.7975)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03123F #3F3003

analogous

#03303F #03123F #12033F

triadic

#03123F #3F0312 #123F03

tetradic

#03123F #3F0330 #3F3003 #033F12

square

#03123F #3F0330 #3F3003 #033F12

split-complementary

#03123F #3F1203 #303F03

monochromatic

#01081D #01081D #03123F #062379 #0933B4

Accessibility & contrast

On white

18.07

#03123F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#03123F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03123F

18.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03123F	#FFFFFF	#000000	##FFFFFF
##03123F	1.00	18.07	1.16	18.07
#FFFFFF	18.07	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001940

Deuteranopia (green-blind)

#00133E

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #03123f;
/* rgb */ color: rgb(3, 18, 63);
/* oklch */ color: oklch(20.6% 0.089 263.9);

Tailwind

colors: {
  custom: {
    50: '#504f75',
    500: '#03123f',
    950: '#000000',
  },
}

SCSS

$custom: #03123f;
$custom-light: #504f75;
$custom-dark: #000000;

JSON

{
  "hex": "#03123f",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 63
  },
  "hsl": {
    "h": 225,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.20626,
    "c": 0.08875,
    "h": 263.9
  },
  "luminance": 0.00811
}

Semantic roles & 50–950 ramp

primary

#03123F

secondary

#81681D

accent

#C929FF

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020108

muted

#78777B

Preview Lab

Preview with #03123F

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

Preview Lab → · Contrast checker → · Palette generator →