#0B3B56#0B3B56

#0B3B56 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.068 H 239.1°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#0B3B56
RGB	rgb(11, 59, 86)
HSL	hsl(202, 77%, 19%)
HSV	hsv(202, 87%, 34%)
CMYK	cmyk(87.2%, 31.4%, 0%, 66.3%)
CIE-LAB	lab(23.24, -4.69, -20.65)
CIE-LCH	lch(23.24, 21.18, 257.20°)
OKLab	oklab(33.59% -0.035 -0.0585)
OKLCH	oklch(33.59% 0.068 239.1)
XYZ	xyz(3.3810, 3.8705, 9.3712)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3B56 #56260B

analogous

#0B564C #0B3B56 #0B1656

triadic

#0B3B56 #560B3B #3B560B

tetradic

#0B3B56 #4C0B56 #56260B #16560B

square

#0B3B56 #4C0B56 #56260B #16560B

split-complementary

#0B3B56 #560B16 #564C0B

monochromatic

#03131B #041620 #0B3B56 #12608C #1985C3

Accessibility & contrast

On white

11.84

#0B3B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#0B3B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3B56

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3B56	#FFFFFF	#000000	##FFFFFF
##0B3B56	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3B57

Deuteranopia (green-blind)

#243456

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #0b3b56;
/* rgb */ color: rgb(11, 59, 86);
/* oklch */ color: oklch(33.6% 0.068 239.1);

Tailwind

colors: {
  custom: {
    50: '#587085',
    500: '#0b3b56',
    950: '#000000',
  },
}

SCSS

$custom: #0b3b56;
$custom-light: #587085;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3b56",
  "rgb": {
    "r": 11,
    "g": 59,
    "b": 86
  },
  "hsl": {
    "h": 201.6,
    "s": 77.32,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33591,
    "c": 0.06815,
    "h": 239.1
  },
  "luminance": 0.03871
}

Semantic roles & 50–950 ramp

primary

#0B3B56

secondary

#91502B

accent

#7934F4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #0B3B56

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

Preview Lab → · Contrast checker → · Palette generator →