#030B2B#030B2B

#030B2B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.7% C 0.067 H 265.6°. Best body text is #FFFFFF at 19.33:1 contrast (WCAG AA passes).

Color values

HEX	#030B2B
RGB	rgb(3, 11, 43)
HSL	hsl(228, 87%, 9%)
HSV	hsv(228, 93%, 17%)
CMYK	cmyk(93%, 74.4%, 0%, 83.1%)
CIE-LAB	lab(3.91, 7.43, -21.25)
CIE-LCH	lch(3.91, 22.52, 289.28°)
OKLab	oklab(16.7% -0.0052 -0.0665)
OKLCH	oklch(16.7% 0.067 265.6)
XYZ	xyz(0.5931, 0.4331, 2.3374)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.40

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030B2B #2B2303

analogous

#031F2B #030B2B #0F032B

triadic

#030B2B #2B030B #0B2B03

tetradic

#030B2B #2B031F #2B2303 #032B0F

square

#030B2B #2B031F #2B2303 #032B0F

split-complementary

#030B2B #2B0F03 #1F2B03

monochromatic

#02071D #02071D #030B2B #071A64 #0B289D

Accessibility & contrast

On white

19.33

#030B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#030B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030B2B

19.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030B2B	#FFFFFF	#000000	##FFFFFF
##030B2B	1.00	19.33	1.09	19.33
#FFFFFF	19.33	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00102C

Deuteranopia (green-blind)

#000C2A

Tritanopia (blue-blind)

#001319

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #030b2b;
/* rgb */ color: rgb(3, 11, 43);
/* oklch */ color: oklch(16.7% 0.067 265.6);

Tailwind

colors: {
  custom: {
    50: '#494b64',
    500: '#030b2b',
    950: '#000000',
  },
}

SCSS

$custom: #030b2b;
$custom-light: #494b64;
$custom-dark: #000000;

JSON

{
  "hex": "#030b2b",
  "rgb": {
    "r": 3,
    "g": 11,
    "b": 43
  },
  "hsl": {
    "h": 228,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.16695,
    "c": 0.06666,
    "h": 265.6
  },
  "luminance": 0.00433
}

Semantic roles & 50–950 ramp

primary

#030B2B

secondary

#6F5E1B

accent

#D32BFD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #030B2B

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

Preview Lab → · Contrast checker → · Palette generator →