#0B233F#0B233F

#0B233F is a dark, moderate cyan. Relative luminance 0.016; OKLCH L 25.4% C 0.061 H 254.2°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#0B233F
RGB	rgb(11, 35, 63)
HSL	hsl(212, 70%, 15%)
HSV	hsv(212, 83%, 25%)
CMYK	cmyk(82.5%, 44.4%, 0%, 75.3%)
CIE-LAB	lab(13.42, 2.27, -20.56)
CIE-LCH	lch(13.42, 20.68, 276.30°)
OKLab	oklab(25.41% -0.0166 -0.0586)
OKLCH	oklch(25.41% 0.061 254.2)
XYZ	xyz(1.6359, 1.6319, 4.9304)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B233F #3F270B

analogous

#0B3D3F #0B233F #0D0B3F

triadic

#0B233F #3F0B23 #233F0B

tetradic

#0B233F #3F0B3D #3F270B #0B3F0D

square

#0B233F #3F0B3D #3F270B #0B3F0D

split-complementary

#0B233F #3F0D0B #3D3F0B

monochromatic

#050E1A #050E1A #0B233F #144073 #1D5DA7

Accessibility & contrast

On white

15.83

#0B233F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#0B233F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B233F

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B233F	#FFFFFF	#000000	##FFFFFF
##0B233F	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#162540

Deuteranopia (green-blind)

#0E203E

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0b233f;
/* rgb */ color: rgb(11, 35, 63);
/* oklch */ color: oklch(25.4% 0.061 254.2);

Tailwind

colors: {
  custom: {
    50: '#525d74',
    500: '#0b233f',
    950: '#000000',
  },
}

SCSS

$custom: #0b233f;
$custom-light: #525d74;
$custom-dark: #000000;

JSON

{
  "hex": "#0b233f",
  "rgb": {
    "r": 11,
    "g": 35,
    "b": 63
  },
  "hsl": {
    "h": 212.308,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25407,
    "c": 0.06091,
    "h": 254.2
  },
  "luminance": 0.01632
}

Semantic roles & 50–950 ramp

primary

#0B233F

secondary

#7C562A

accent

#9B3BED

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020408

muted

#78797B

Preview Lab

Preview with #0B233F

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

Preview Lab → · Contrast checker → · Palette generator →