#0B3143#0B3143

#0B3143 is a dark, muted cyan. Relative luminance 0.027; OKLCH L 29.6% C 0.053 H 233.4°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#0B3143
RGB	rgb(11, 49, 67)
HSL	hsl(199, 72%, 15%)
HSV	hsv(199, 84%, 26%)
CMYK	cmyk(83.6%, 26.9%, 0%, 73.7%)
CIE-LAB	lab(18.68, -5.95, -15.05)
CIE-LCH	lch(18.68, 16.18, 248.43°)
OKLab	oklab(29.63% -0.0314 -0.0423)
OKLCH	oklch(29.63% 0.053 233.4)
XYZ	xyz(2.2490, 2.6728, 5.7065)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3143 #431D0B

analogous

#0B4339 #0B3143 #0B1543

triadic

#0B3143 #430B31 #31430B

tetradic

#0B3143 #390B43 #431D0B #15430B

square

#0B3143 #390B43 #431D0B #15430B

split-complementary

#0B3143 #430B15 #43390B

monochromatic

#04131A #04131A #0B3143 #145778 #1C7EAC

Accessibility & contrast

On white

13.68

#0B3143 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#0B3143 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3143

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3143	#FFFFFF	#000000	##FFFFFF
##0B3143	1.00	13.68	1.53	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283044

Deuteranopia (green-blind)

#212B43

Tritanopia (blue-blind)

#003637

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0b3143;
/* rgb */ color: rgb(11, 49, 67);
/* oklch */ color: oklch(29.6% 0.053 233.4);

Tailwind

colors: {
  custom: {
    50: '#546977',
    500: '#0b3143',
    950: '#000000',
  },
}

SCSS

$custom: #0b3143;
$custom-light: #546977;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3143",
  "rgb": {
    "r": 11,
    "g": 49,
    "b": 67
  },
  "hsl": {
    "h": 199.286,
    "s": 71.795,
    "l": 15.294
  },
  "oklch": {
    "l": 0.29634,
    "c": 0.05274,
    "h": 233.4
  },
  "luminance": 0.02673
}

Semantic roles & 50–950 ramp

primary

#0B3143

secondary

#80462A

accent

#7439EF

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0B3143

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

Preview Lab → · Contrast checker → · Palette generator →