#0B304A#0B304A

#0B304A is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 29.8% C 0.062 H 243.8°. Best body text is #FFFFFF at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#0B304A
RGB	rgb(11, 48, 74)
HSL	hsl(205, 74%, 17%)
HSV	hsv(205, 85%, 29%)
CMYK	cmyk(85.1%, 35.1%, 0%, 71%)
CIE-LAB	lab(18.71, -2.31, -19.76)
CIE-LCH	lch(18.71, 19.90, 263.34°)
OKLab	oklab(29.78% -0.0276 -0.056)
OKLCH	oklch(29.78% 0.062 243.8)
XYZ	xyz(2.4305, 2.6792, 6.8663)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B304A #4A250B

analogous

#0B4A45 #0B304A #0B114A

triadic

#0B304A #4A0B30 #304A0B

tetradic

#0B304A #450B4A #4A250B #114A0B

square

#0B304A #450B4A #4A250B #114A0B

split-complementary

#0B304A #4A0B11 #4A450B

monochromatic

#04111B #04111B #0B304A #13537F #1B75B5

Accessibility & contrast

On white

13.67

#0B304A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#0B304A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B304A

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B304A	#FFFFFF	#000000	##FFFFFF
##0B304A	1.00	13.67	1.54	13.67
#FFFFFF	13.67	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24314B

Deuteranopia (green-blind)

#1B2B4A

Tritanopia (blue-blind)

#003639

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #0b304a;
/* rgb */ color: rgb(11, 48, 74);
/* oklch */ color: oklch(29.8% 0.062 243.8);

Tailwind

colors: {
  custom: {
    50: '#55687c',
    500: '#0b304a',
    950: '#000000',
  },
}

SCSS

$custom: #0b304a;
$custom-light: #55687c;
$custom-dark: #000000;

JSON

{
  "hex": "#0b304a",
  "rgb": {
    "r": 11,
    "g": 48,
    "b": 74
  },
  "hsl": {
    "h": 204.762,
    "s": 74.118,
    "l": 16.667
  },
  "oklch": {
    "l": 0.29783,
    "c": 0.06246,
    "h": 243.8
  },
  "luminance": 0.02679
}

Semantic roles & 50–950 ramp

primary

#0B304A

secondary

#86502B

accent

#8437F1

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030609

muted

#787A7B

Preview Lab

Preview with #0B304A

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

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