#0B273F#0B273F

#0B273F is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.5% C 0.056 H 247.8°. Best body text is #FFFFFF at 15.26:1 contrast (WCAG AA passes).

Color values

HEX	#0B273F
RGB	rgb(11, 39, 63)
HSL	hsl(208, 70%, 15%)
HSV	hsv(208, 83%, 25%)
CMYK	cmyk(82.5%, 38.1%, 0%, 75.3%)
CIE-LAB	lab(14.85, -0.68, -18.30)
CIE-LCH	lch(14.85, 18.31, 267.87°)
OKLab	oklab(26.52% -0.0212 -0.0519)
OKLCH	oklch(26.52% 0.056 247.8)
XYZ	xyz(1.7604, 1.8809, 4.9719)
Luminance	0.0188 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B273F #3F230B

analogous

#0B3F3D #0B273F #0B0D3F

triadic

#0B273F #3F0B27 #273F0B

tetradic

#0B273F #3D0B3F #3F230B #0D3F0B

square

#0B273F #3D0B3F #3F230B #0D3F0B

split-complementary

#0B273F #3F0B0D #3F3D0B

monochromatic

#05101A #05101A #0B273F #144773 #1D68A7

Accessibility & contrast

On white

15.26

#0B273F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#0B273F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B273F

15.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B273F	#FFFFFF	#000000	##FFFFFF
##0B273F	1.00	15.26	1.38	15.26
#FFFFFF	15.26	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C2840

Deuteranopia (green-blind)

#15233F

Tritanopia (blue-blind)

#002D30

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0b273f;
/* rgb */ color: rgb(11, 39, 63);
/* oklch */ color: oklch(26.5% 0.056 247.8);

Tailwind

colors: {
  custom: {
    50: '#526074',
    500: '#0b273f',
    950: '#000000',
  },
}

SCSS

$custom: #0b273f;
$custom-light: #526074;
$custom-dark: #000000;

JSON

{
  "hex": "#0b273f",
  "rgb": {
    "r": 11,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 207.692,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.26524,
    "c": 0.05609,
    "h": 247.8
  },
  "luminance": 0.01881
}

Semantic roles & 50–950 ramp

primary

#0B273F

secondary

#7C502A

accent

#8D3BED

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#030508

muted

#78797B

Preview Lab

Preview with #0B273F

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

Preview Lab → · Contrast checker → · Palette generator →