#030B2A#030B2A

#030B2A is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.6% C 0.065 H 265.4°. Best body text is #FFFFFF at 19.35:1 contrast (WCAG AA passes).

Color values

HEX	#030B2A
RGB	rgb(3, 11, 42)
HSL	hsl(228, 87%, 9%)
HSV	hsv(228, 93%, 16%)
CMYK	cmyk(92.9%, 73.8%, 0%, 83.5%)
CIE-LAB	lab(3.85, 6.98, -20.60)
CIE-LCH	lch(3.85, 21.75, 288.71°)
OKLab	oklab(16.58% -0.0052 -0.0647)
OKLCH	oklch(16.58% 0.065 265.4)
XYZ	xyz(0.5750, 0.4258, 2.2419)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030B2A #2A2203

analogous

#031F2A #030B2A #0F032A

triadic

#030B2A #2A030B #0B2A03

tetradic

#030B2A #2A031F #2A2203 #032A0F

square

#030B2A #2A031F #2A2203 #032A0F

split-complementary

#030B2A #2A0F03 #1F2A03

monochromatic

#02071D #02071D #030B2A #071A63 #0B299C

Accessibility & contrast

On white

19.35

#030B2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#030B2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030B2A

19.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030B2A	#FFFFFF	#000000	##FFFFFF
##030B2A	1.00	19.35	1.09	19.35
#FFFFFF	19.35	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102B

Deuteranopia (green-blind)

#000C29

Tritanopia (blue-blind)

#001318

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #030b2a;
/* rgb */ color: rgb(3, 11, 42);
/* oklch */ color: oklch(16.6% 0.065 265.4);

Tailwind

colors: {
  custom: {
    50: '#494b63',
    500: '#030b2a',
    950: '#000000',
  },
}

SCSS

$custom: #030b2a;
$custom-light: #494b63;
$custom-dark: #000000;

JSON

{
  "hex": "#030b2a",
  "rgb": {
    "r": 3,
    "g": 11,
    "b": 42
  },
  "hsl": {
    "h": 227.692,
    "s": 86.667,
    "l": 8.824
  },
  "oklch": {
    "l": 0.16583,
    "c": 0.06496,
    "h": 265.4
  },
  "luminance": 0.00426
}

Semantic roles & 50–950 ramp

primary

#030B2A

secondary

#6E5D1B

accent

#D22BFD

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #030B2A

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

Preview Lab → · Contrast checker → · Palette generator →