#050B2B#050B2B

#050B2B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.9% C 0.065 H 268.7°. Best body text is #FFFFFF at 19.28:1 contrast (WCAG AA passes).

Color values

HEX	#050B2B
RGB	rgb(5, 11, 43)
HSL	hsl(231, 79%, 9%)
HSV	hsv(231, 88%, 17%)
CMYK	cmyk(88.4%, 74.4%, 0%, 83.1%)
CIE-LAB	lab(4.03, 7.96, -21.06)
CIE-LCH	lch(4.03, 22.51, 290.70°)
OKLab	oklab(16.89% -0.0014 -0.0655)
OKLCH	oklch(16.89% 0.065 268.7)
XYZ	xyz(0.6182, 0.4460, 2.3385)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.33

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#050B2B #2B2505

analogous

#051E2B #050B2B #12052B

triadic

#050B2B #2B050B #0B2B05

tetradic

#050B2B #2B051E #2B2505 #052B12

square

#050B2B #2B051E #2B2505 #052B12

split-complementary

#050B2B #2B1205 #1E2B05

monochromatic

#03071B #03071B #050B2B #0B1962 #122799

Accessibility & contrast

On white

19.28

#050B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#050B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #050B2B

19.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##050B2B	#FFFFFF	#000000	##FFFFFF
##050B2B	1.00	19.28	1.09	19.28
#FFFFFF	19.28	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.28	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: #050b2b;
/* rgb */ color: rgb(5, 11, 43);
/* oklch */ color: oklch(16.9% 0.065 268.7);

Tailwind

colors: {
  custom: {
    50: '#4a4b64',
    500: '#050b2b',
    950: '#000000',
  },
}

SCSS

$custom: #050b2b;
$custom-light: #4a4b64;
$custom-dark: #000000;

JSON

{
  "hex": "#050b2b",
  "rgb": {
    "r": 5,
    "g": 11,
    "b": 43
  },
  "hsl": {
    "h": 230.526,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.16885,
    "c": 0.06549,
    "h": 268.7
  },
  "luminance": 0.00446
}

Semantic roles & 50–950 ramp

primary

#050B2B

secondary

#6D601F

accent

#D732F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #050B2B

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

Preview Lab → · Contrast checker → · Palette generator →