#030A2B#030A2B

#030A2B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.068 H 266.3°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#030A2B
RGB	rgb(3, 10, 43)
HSL	hsl(230, 87%, 9%)
HSV	hsv(230, 93%, 17%)
CMYK	cmyk(93%, 76.7%, 0%, 83.1%)
CIE-LAB	lab(3.71, 7.85, -21.57)
CIE-LCH	lch(3.71, 22.95, 289.99°)
OKLab	oklab(16.45% -0.0044 -0.0681)
OKLCH	oklch(16.45% 0.068 266.3)
XYZ	xyz(0.5820, 0.4108, 2.3336)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.16

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030A2B #2B2403

analogous

#031E2B #030A2B #10032B

triadic

#030A2B #2B030A #0A2B03

tetradic

#030A2B #2B031E #2B2403 #032B10

square

#030A2B #2B031E #2B2403 #032B10

split-complementary

#030A2B #2B1003 #1E2B03

monochromatic

#02071D #02071D #030A2B #071764 #0B259D

Accessibility & contrast

On white

19.40

#030A2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#030A2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030A2B

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030A2B	#FFFFFF	#000000	##FFFFFF
##030A2B	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F2C

Deuteranopia (green-blind)

#000B2A

Tritanopia (blue-blind)

#001319

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #030a2b;
/* rgb */ color: rgb(3, 10, 43);
/* oklch */ color: oklch(16.4% 0.068 266.3);

Tailwind

colors: {
  custom: {
    50: '#494b64',
    500: '#030a2b',
    950: '#000000',
  },
}

SCSS

$custom: #030a2b;
$custom-light: #494b64;
$custom-dark: #000000;

JSON

{
  "hex": "#030a2b",
  "rgb": {
    "r": 3,
    "g": 10,
    "b": 43
  },
  "hsl": {
    "h": 229.5,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.1645,
    "c": 0.0682,
    "h": 266.3
  },
  "luminance": 0.00411
}

Semantic roles & 50–950 ramp

primary

#030A2B

secondary

#6F601B

accent

#D82BFD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #030A2B

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

Preview Lab → · Contrast checker → · Palette generator →