#0B2A3F#0B2A3F

#0B2A3F is a dark, muted cyan. Relative luminance 0.021; OKLCH L 27.4% C 0.053 H 242.2°. Best body text is #FFFFFF at 14.82:1 contrast (WCAG AA passes).

Color values

HEX	#0B2A3F
RGB	rgb(11, 42, 63)
HSL	hsl(204, 70%, 15%)
HSV	hsv(204, 83%, 25%)
CMYK	cmyk(82.5%, 33.3%, 0%, 75.3%)
CIE-LAB	lab(15.93, -2.83, -16.60)
CIE-LCH	lch(15.93, 16.83, 260.34°)
OKLab	oklab(27.38% -0.0248 -0.0469)
OKLCH	oklch(27.38% 0.053 242.2)
XYZ	xyz(1.8628, 2.0857, 5.0061)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2A3F #3F200B

analogous

#0B3F3A #0B2A3F #0B103F

triadic

#0B2A3F #3F0B2A #2A3F0B

tetradic

#0B2A3F #3A0B3F #3F200B #103F0B

square

#0B2A3F #3A0B3F #3F200B #103F0B

split-complementary

#0B2A3F #3F0B10 #3F3A0B

monochromatic

#05111A #05111A #0B2A3F #144D73 #1D6FA7

Accessibility & contrast

On white

14.82

#0B2A3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#0B2A3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2A3F

14.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2A3F	#FFFFFF	#000000	##FFFFFF
##0B2A3F	1.00	14.82	1.42	14.82
#FFFFFF	14.82	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#202A40

Deuteranopia (green-blind)

#19253F

Tritanopia (blue-blind)

#002F31

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0b2a3f;
/* rgb */ color: rgb(11, 42, 63);
/* oklch */ color: oklch(27.4% 0.053 242.2);

Tailwind

colors: {
  custom: {
    50: '#526374',
    500: '#0b2a3f',
    950: '#000000',
  },
}

SCSS

$custom: #0b2a3f;
$custom-light: #526374;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2a3f",
  "rgb": {
    "r": 11,
    "g": 42,
    "b": 63
  },
  "hsl": {
    "h": 204.231,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.27378,
    "c": 0.05306,
    "h": 242.2
  },
  "luminance": 0.02086
}

Semantic roles & 50–950 ramp

primary

#0B2A3F

secondary

#7C4B2A

accent

#833BED

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #0B2A3F

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

Preview Lab → · Contrast checker → · Palette generator →