#0B304C#0B304C

#0B304C is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 29.9% C 0.065 H 245.7°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#0B304C
RGB	rgb(11, 48, 76)
HSL	hsl(206, 75%, 17%)
HSV	hsv(206, 86%, 30%)
CMYK	cmyk(85.5%, 36.8%, 0%, 70.2%)
CIE-LAB	lab(18.83, -1.44, -20.93)
CIE-LCH	lch(18.83, 20.98, 266.05°)
OKLab	oklab(29.92% -0.0269 -0.0594)
OKLCH	oklch(29.92% 0.065 245.7)
XYZ	xyz(2.4990, 2.7066, 7.2268)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B304C #4C270B

analogous

#0B4C48 #0B304C #0B104C

triadic

#0B304C #4C0B30 #304C0B

tetradic

#0B304C #480B4C #4C270B #104C0B

square

#0B304C #480B4C #4C270B #104C0B

split-complementary

#0B304C #4C0B10 #4C480B

monochromatic

#04111B #04111B #0B304C #135281 #1A74B7

Accessibility & contrast

On white

13.62

#0B304C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#0B304C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B304C

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B304C	#FFFFFF	#000000	##FFFFFF
##0B304C	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23314D

Deuteranopia (green-blind)

#1A2B4B

Tritanopia (blue-blind)

#00373A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #0b304c;
/* rgb */ color: rgb(11, 48, 76);
/* oklch */ color: oklch(29.9% 0.065 245.7);

Tailwind

colors: {
  custom: {
    50: '#56687e',
    500: '#0b304c',
    950: '#000000',
  },
}

SCSS

$custom: #0b304c;
$custom-light: #56687e;
$custom-dark: #000000;

JSON

{
  "hex": "#0b304c",
  "rgb": {
    "r": 11,
    "g": 48,
    "b": 76
  },
  "hsl": {
    "h": 205.846,
    "s": 74.713,
    "l": 17.059
  },
  "oklch": {
    "l": 0.29915,
    "c": 0.06524,
    "h": 245.7
  },
  "luminance": 0.02707
}

Semantic roles & 50–950 ramp

primary

#0B304C

secondary

#88532B

accent

#8736F1

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#03060A

muted

#787A7C

Preview Lab

Preview with #0B304C

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

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