#030A3B#030A3B

#030A3B is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.4% C 0.094 H 266.6°. Best body text is #FFFFFF at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#030A3B
RGB	rgb(3, 10, 59)
HSL	hsl(233, 90%, 12%)
HSV	hsv(233, 95%, 23%)
CMYK	cmyk(94.9%, 83.1%, 0%, 76.9%)
CIE-LAB	lab(4.99, 16.68, -31.36)
CIE-LCH	lch(4.99, 35.52, 298.01°)
OKLab	oklab(18.44% -0.0055 -0.0934)
OKLCH	oklch(18.44% 0.094 266.6)
XYZ	xyz(0.9352, 0.5521, 4.1941)
Luminance	0.0055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Dark Navy

#000435

ΔE00 1.48

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030A3B #3B3403

analogous

#03263B #030A3B #18033B

triadic

#030A3B #3B030A #0A3B03

tetradic

#030A3B #3B0326 #3B3403 #033B18

square

#030A3B #3B0326 #3B3403 #033B18

split-complementary

#030A3B #3B1803 #263B03

monochromatic

#01051D #01051D #030A3B #061475 #091EAF

Accessibility & contrast

On white

18.91

#030A3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#030A3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030A3B

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030A3B	#FFFFFF	#000000	##FFFFFF
##030A3B	1.00	18.91	1.11	18.91
#FFFFFF	18.91	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00143C

Deuteranopia (green-blind)

#000E3A

Tritanopia (blue-blind)

#001821

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #030a3b;
/* rgb */ color: rgb(3, 10, 59);
/* oklch */ color: oklch(18.4% 0.094 266.6);

Tailwind

colors: {
  custom: {
    50: '#4f4a71',
    500: '#030a3b',
    950: '#000000',
  },
}

SCSS

$custom: #030a3b;
$custom-light: #4f4a71;
$custom-dark: #000000;

JSON

{
  "hex": "#030a3b",
  "rgb": {
    "r": 3,
    "g": 10,
    "b": 59
  },
  "hsl": {
    "h": 232.5,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.18435,
    "c": 0.09352,
    "h": 266.6
  },
  "luminance": 0.00552
}

Semantic roles & 50–950 ramp

primary

#030A3B

secondary

#7E711C

accent

#E429FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020108

muted

#78777B

Preview Lab

Preview with #030A3B

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

Preview Lab → · Contrast checker → · Palette generator →