#03072B#03072B

#03072B is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.7% C 0.073 H 268.3°. Best body text is #FFFFFF at 19.64:1 contrast (WCAG AA passes).

Color values

HEX	#03072B
RGB	rgb(3, 7, 43)
HSL	hsl(234, 87%, 9%)
HSV	hsv(234, 93%, 17%)
CMYK	cmyk(93%, 83.7%, 0%, 83.1%)
CIE-LAB	lab(3.12, 9.05, -22.50)
CIE-LCH	lch(3.12, 24.25, 291.90°)
OKLab	oklab(15.69% -0.0022 -0.0731)
OKLCH	oklch(15.69% 0.073 268.3)
XYZ	xyz(0.5494, 0.3457, 2.3228)
Luminance	0.0035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.48

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03072B #2B2703

analogous

#031B2B #03072B #13032B

triadic

#03072B #2B0307 #072B03

tetradic

#03072B #2B031B #2B2703 #032B13

square

#03072B #2B031B #2B2703 #032B13

split-complementary

#03072B #2B1303 #1B2B03

monochromatic

#02051D #02051D #03072B #071064 #0B1A9D

Accessibility & contrast

On white

19.64

#03072B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#03072B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03072B

19.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03072B	#FFFFFF	#000000	##FFFFFF
##03072B	1.00	19.64	1.07	19.64
#FFFFFF	19.64	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2C

Deuteranopia (green-blind)

#00092A

Tritanopia (blue-blind)

#001117

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #03072b;
/* rgb */ color: rgb(3, 7, 43);
/* oklch */ color: oklch(15.7% 0.073 268.3);

Tailwind

colors: {
  custom: {
    50: '#494a64',
    500: '#03072b',
    950: '#000000',
  },
}

SCSS

$custom: #03072b;
$custom-light: #494a64;
$custom-dark: #000000;

JSON

{
  "hex": "#03072b",
  "rgb": {
    "r": 3,
    "g": 7,
    "b": 43
  },
  "hsl": {
    "h": 234,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.15687,
    "c": 0.0731,
    "h": 268.3
  },
  "luminance": 0.00346
}

Semantic roles & 50–950 ramp

primary

#03072B

secondary

#6F661B

accent

#E82BFD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #03072B

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

Preview Lab → · Contrast checker → · Palette generator →