#0B1D52#0B1D52

#0B1D52 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.100 H 265.4°. Best body text is #FFFFFF at 16.01:1 contrast (WCAG AA passes).

Color values

HEX	#0B1D52
RGB	rgb(11, 29, 82)
HSL	hsl(225, 76%, 18%)
HSV	hsv(225, 87%, 32%)
CMYK	cmyk(86.6%, 64.6%, 0%, 67.8%)
CIE-LAB	lab(12.98, 15.40, -34.40)
CIE-LCH	lch(12.98, 37.69, 294.11°)
OKLab	oklab(25.55% -0.008 -0.0994)
OKLCH	oklch(25.55% 0.1 265.4)
XYZ	xyz(2.0998, 1.5588, 8.1712)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B1D52 #52400B

analogous

#0B4052 #0B1D52 #1C0B52

triadic

#0B1D52 #520B1D #1D520B

tetradic

#0B1D52 #520B40 #52400B #0B521C

square

#0B1D52 #520B40 #52400B #0B521C

split-complementary

#0B1D52 #521C0B #40520B

monochromatic

#040A1B #040A1C #0B1D52 #123088 #1943BE

Accessibility & contrast

On white

16.01

#0B1D52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0B1D52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B1D52

16.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B1D52	#FFFFFF	#000000	##FFFFFF
##0B1D52	1.00	16.01	1.31	16.01
#FFFFFF	16.01	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002554

Deuteranopia (green-blind)

#001E51

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #0b1d52;
/* rgb */ color: rgb(11, 29, 82);
/* oklch */ color: oklch(25.6% 0.100 265.4);

Tailwind

colors: {
  custom: {
    50: '#585883',
    500: '#0b1d52',
    950: '#000000',
  },
}

SCSS

$custom: #0b1d52;
$custom-light: #585883;
$custom-dark: #000000;

JSON

{
  "hex": "#0b1d52",
  "rgb": {
    "r": 11,
    "g": 29,
    "b": 82
  },
  "hsl": {
    "h": 224.789,
    "s": 76.344,
    "l": 18.235
  },
  "oklch": {
    "l": 0.25553,
    "c": 0.09974,
    "h": 265.4
  },
  "luminance": 0.01559
}

Semantic roles & 50–950 ramp

primary

#0B1D52

secondary

#8E752B

accent

#C335F3

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #0B1D52

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

Preview Lab → · Contrast checker → · Palette generator →