#0B233A#0B233A

#0B233A is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.0% C 0.053 H 249.9°. Best body text is #FFFFFF at 15.96:1 contrast (WCAG AA passes).

Color values

HEX	#0B233A
RGB	rgb(11, 35, 58)
HSL	hsl(209, 68%, 14%)
HSV	hsv(209, 81%, 23%)
CMYK	cmyk(81%, 39.7%, 0%, 77.3%)
CIE-LAB	lab(13.10, 0.06, -17.55)
CIE-LCH	lch(13.10, 17.55, 270.20°)
OKLab	oklab(25.05% -0.0182 -0.0498)
OKLCH	oklch(25.05% 0.053 249.9)
XYZ	xyz(1.5025, 1.5785, 4.2277)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B233A #3A220B

analogous

#0B3A39 #0B233A #0B0B3A

triadic

#0B233A #3A0B23 #233A0B

tetradic

#0B233A #390B3A #3A220B #0B3A0B

square

#0B233A #390B3A #3A220B #0B3A0B

split-complementary

#0B233A #3A0B0B #3A390B

monochromatic

#05101A #05101A #0B233A #15426D #1F61A1

Accessibility & contrast

On white

15.96

#0B233A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#0B233A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B233A

15.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B233A	#FFFFFF	#000000	##FFFFFF
##0B233A	1.00	15.96	1.32	15.96
#FFFFFF	15.96	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19243B

Deuteranopia (green-blind)

#12203A

Tritanopia (blue-blind)

#00282B

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0b233a;
/* rgb */ color: rgb(11, 35, 58);
/* oklch */ color: oklch(25.0% 0.053 249.9);

Tailwind

colors: {
  custom: {
    50: '#515d70',
    500: '#0b233a',
    950: '#000000',
  },
}

SCSS

$custom: #0b233a;
$custom-light: #515d70;
$custom-dark: #000000;

JSON

{
  "hex": "#0b233a",
  "rgb": {
    "r": 11,
    "g": 35,
    "b": 58
  },
  "hsl": {
    "h": 209.362,
    "s": 68.116,
    "l": 13.529
  },
  "oklch": {
    "l": 0.25048,
    "c": 0.05303,
    "h": 249.9
  },
  "luminance": 0.01579
}

Semantic roles & 50–950 ramp

primary

#0B233A

secondary

#77502A

accent

#923DEB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0B233A

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

Preview Lab → · Contrast checker → · Palette generator →