#0B052F#0B052F

#0B052F is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.5% C 0.080 H 280.6°. Best body text is #FFFFFF at 19.50:1 contrast (WCAG AA passes).

Color values

HEX	#0B052F
RGB	rgb(11, 5, 47)
HSL	hsl(249, 81%, 10%)
HSV	hsv(249, 89%, 18%)
CMYK	cmyk(76.6%, 89.4%, 0%, 81.6%)
CIE-LAB	lab(3.48, 13.90, -24.93)
CIE-LCH	lch(3.48, 28.54, 299.15°)
OKLab	oklab(16.52% 0.0146 -0.0784)
OKLCH	oklch(16.52% 0.08 280.6)
XYZ	xyz(0.7052, 0.3849, 2.7259)
Luminance	0.0039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B052F #292F05

analogous

#05142F #0B052F #20052F

triadic

#0B052F #2F0B05 #052F0B

tetradic

#0B052F #2F0514 #292F05 #052F20

square

#0B052F #2F0514 #292F05 #052F20

split-complementary

#0B052F #2F2005 #142F05

monochromatic

#06031C #06031C #0B052F #180B66 #25119E

Accessibility & contrast

On white

19.50

#0B052F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#0B052F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B052F

19.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B052F	#FFFFFF	#000000	##FFFFFF
##0B052F	1.00	19.50	1.08	19.50
#FFFFFF	19.50	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E30

Deuteranopia (green-blind)

#000B2E

Tritanopia (blue-blind)

#001019

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #0b052f;
/* rgb */ color: rgb(11, 5, 47);
/* oklch */ color: oklch(16.5% 0.080 280.6);

Tailwind

colors: {
  custom: {
    50: '#4e4868',
    500: '#0b052f',
    950: '#000000',
  },
}

SCSS

$custom: #0b052f;
$custom-light: #4e4868;
$custom-dark: #000000;

JSON

{
  "hex": "#0b052f",
  "rgb": {
    "r": 11,
    "g": 5,
    "b": 47
  },
  "hsl": {
    "h": 248.571,
    "s": 80.769,
    "l": 10.196
  },
  "oklch": {
    "l": 0.16517,
    "c": 0.07974,
    "h": 280.6
  },
  "luminance": 0.00385
}

Semantic roles & 50–950 ramp

primary

#0B052F

secondary

#65711F

accent

#F731DB

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #0B052F

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

Preview Lab → · Contrast checker → · Palette generator →