#03011F#03011F

#03011F is a very dark, moderate blue. Relative luminance 0.001; OKLCH L 12.0% C 0.068 H 275.4°. Best body text is #FFFFFF at 20.43:1 contrast (WCAG AA passes).

Color values

HEX	#03011F
RGB	rgb(3, 1, 31)
HSL	hsl(244, 94%, 6%)
HSV	hsv(244, 97%, 12%)
CMYK	cmyk(90.3%, 96.8%, 0%, 87.8%)
CIE-LAB	lab(1.26, 6.66, -16.03)
CIE-LCH	lch(1.26, 17.36, 292.55°)
OKLab	oklab(11.96% 0.0064 -0.0677)
OKLCH	oklch(11.96% 0.068 275.4)
XYZ	xyz(0.2956, 0.1400, 1.3075)
Luminance	0.0014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.95

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03011F #1D1F01

analogous

#010E1F #03011F #12011F

triadic

#03011F #1F0301 #011F03

tetradic

#03011F #1F010E #1D1F01 #011F12

square

#03011F #1F010E #1D1F01 #011F12

split-complementary

#03011F #1F1201 #0E1F01

monochromatic

#03011E #03011E #03011F #09035A #0E0596

Accessibility & contrast

On white

20.43

#03011F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#03011F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03011F

20.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03011F	#FFFFFF	#000000	##FFFFFF
##03011F	1.00	20.43	1.03	20.43
#FFFFFF	20.43	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000620

Deuteranopia (green-blind)

#00041E

Tritanopia (blue-blind)

#00070E

Achromatopsia (no color)

#050505

Design tokens & code

CSS

--color: #03011f;
/* rgb */ color: rgb(3, 1, 31);
/* oklch */ color: oklch(12.0% 0.068 275.4);

Tailwind

colors: {
  custom: {
    50: '#47475a',
    500: '#03011f',
    950: '#000000',
  },
}

SCSS

$custom: #03011f;
$custom-light: #47475a;
$custom-dark: #000000;

JSON

{
  "hex": "#03011f",
  "rgb": {
    "r": 3,
    "g": 1,
    "b": 31
  },
  "hsl": {
    "h": 244,
    "s": 93.75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.11958,
    "c": 0.068,
    "h": 275.4
  },
  "luminance": 0.0014
}

Semantic roles & 50–950 ramp

primary

#03011F

secondary

#616715

accent

#FF29F1

background

#F4F3F5

surface

#E6E5E9

border

#C2C1C5

text

#000004

muted

#777779

Preview Lab

Preview with #03011F

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

Preview Lab → · Contrast checker → · Palette generator →