#0B2B3F#0B2B3F

#0B2B3F is a dark, muted cyan. Relative luminance 0.022; OKLCH L 27.7% C 0.052 H 240.2°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#0B2B3F
RGB	rgb(11, 43, 63)
HSL	hsl(203, 70%, 15%)
HSV	hsv(203, 83%, 25%)
CMYK	cmyk(82.5%, 31.7%, 0%, 75.3%)
CIE-LAB	lab(16.29, -3.53, -16.03)
CIE-LCH	lch(16.29, 16.41, 257.58°)
OKLab	oklab(27.67% -0.026 -0.0453)
OKLCH	oklch(27.67% 0.052 240.2)
XYZ	xyz(1.8987, 2.1576, 5.0180)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2B3F #3F1F0B

analogous

#0B3F39 #0B2B3F #0B113F

triadic

#0B2B3F #3F0B2B #2B3F0B

tetradic

#0B2B3F #390B3F #3F1F0B #113F0B

square

#0B2B3F #390B3F #3F1F0B #113F0B

split-complementary

#0B2B3F #3F0B11 #3F390B

monochromatic

#05121A #05121A #0B2B3F #144F73 #1D72A7

Accessibility & contrast

On white

14.67

#0B2B3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#0B2B3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2B3F

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2B3F	#FFFFFF	#000000	##FFFFFF
##0B2B3F	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#222B40

Deuteranopia (green-blind)

#1B263F

Tritanopia (blue-blind)

#003032

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0b2b3f;
/* rgb */ color: rgb(11, 43, 63);
/* oklch */ color: oklch(27.7% 0.052 240.2);

Tailwind

colors: {
  custom: {
    50: '#526474',
    500: '#0b2b3f',
    950: '#000000',
  },
}

SCSS

$custom: #0b2b3f;
$custom-light: #526474;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2b3f",
  "rgb": {
    "r": 11,
    "g": 43,
    "b": 63
  },
  "hsl": {
    "h": 203.077,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.27665,
    "c": 0.05218,
    "h": 240.2
  },
  "luminance": 0.02158
}

Semantic roles & 50–950 ramp

primary

#0B2B3F

secondary

#7C492A

accent

#7F3BED

background

#F4F5F7

surface

#E7EAED

border

#C3C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #0B2B3F

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

Preview Lab → · Contrast checker → · Palette generator →