#03073B#03073B

#03073B is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.8% C 0.097 H 267.4°. Best body text is #FFFFFF at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#03073B
RGB	rgb(3, 7, 59)
HSL	hsl(236, 90%, 12%)
HSV	hsv(236, 95%, 23%)
CMYK	cmyk(94.9%, 88.1%, 0%, 76.9%)
CIE-LAB	lab(4.40, 17.96, -32.32)
CIE-LCH	lch(4.40, 36.97, 299.06°)
OKLab	oklab(17.84% -0.0045 -0.0974)
OKLCH	oklch(17.84% 0.097 267.4)
XYZ	xyz(0.9027, 0.4870, 4.1832)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03073B #3B3703

analogous

#03233B #03073B #1B033B

triadic

#03073B #3B0307 #073B03

tetradic

#03073B #3B0323 #3B3703 #033B1B

square

#03073B #3B0323 #3B3703 #033B1B

split-complementary

#03073B #3B1B03 #233B03

monochromatic

#01031D #01031D #03073B #060E75 #0915AF

Accessibility & contrast

On white

19.14

#03073B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#03073B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03073B

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03073B	#FFFFFF	#000000	##FFFFFF
##03073B	1.00	19.14	1.10	19.14
#FFFFFF	19.14	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123C

Deuteranopia (green-blind)

#000C3A

Tritanopia (blue-blind)

#001720

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #03073b;
/* rgb */ color: rgb(3, 7, 59);
/* oklch */ color: oklch(17.8% 0.097 267.4);

Tailwind

colors: {
  custom: {
    50: '#4f4972',
    500: '#03073b',
    950: '#000000',
  },
}

SCSS

$custom: #03073b;
$custom-light: #4f4972;
$custom-dark: #000000;

JSON

{
  "hex": "#03073b",
  "rgb": {
    "r": 3,
    "g": 7,
    "b": 59
  },
  "hsl": {
    "h": 235.714,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.17835,
    "c": 0.09746,
    "h": 267.4
  },
  "luminance": 0.00487
}

Semantic roles & 50–950 ramp

primary

#03073B

secondary

#7E771C

accent

#F029FF

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020008

muted

#78777B

Preview Lab

Preview with #03073B

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

Preview Lab → · Contrast checker → · Palette generator →