#0B4451#0B4451

#0B4451 is a dark, muted cyan. Relative luminance 0.048; OKLCH L 35.8% C 0.059 H 217.4°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#0B4451
RGB	rgb(11, 68, 81)
HSL	hsl(191, 76%, 18%)
HSV	hsv(191, 86%, 32%)
CMYK	cmyk(86.4%, 16%, 0%, 68.2%)
CIE-LAB	lab(26.15, -12.40, -12.85)
CIE-LCH	lch(26.15, 17.86, 226.01°)
OKLab	oklab(35.84% -0.0469 -0.0359)
OKLCH	oklch(35.84% 0.059 217.4)
XYZ	xyz(3.6897, 4.7990, 8.5148)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B4451 #51180B

analogous

#0B513B #0B4451 #0B2151

triadic

#0B4451 #510B44 #44510B

tetradic

#0B4451 #3B0B51 #51180B #21510B

square

#0B4451 #3B0B51 #51180B #21510B

split-complementary

#0B4451 #510B21 #513B0B

monochromatic

#04171B #04171B #0B4451 #127187 #1A9EBD

Accessibility & contrast

On white

10.72

#0B4451 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#0B4451 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B4451

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B4451	#FFFFFF	#000000	##FFFFFF
##0B4451	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4252

Deuteranopia (green-blind)

#323B51

Tritanopia (blue-blind)

#004848

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #0b4451;
/* rgb */ color: rgb(11, 68, 81);
/* oklch */ color: oklch(35.8% 0.059 217.4);

Tailwind

colors: {
  custom: {
    50: '#587881',
    500: '#0b4451',
    950: '#000000',
  },
}

SCSS

$custom: #0b4451;
$custom-light: #587881;
$custom-dark: #000000;

JSON

{
  "hex": "#0b4451",
  "rgb": {
    "r": 11,
    "g": 68,
    "b": 81
  },
  "hsl": {
    "h": 191.143,
    "s": 76.087,
    "l": 18.039
  },
  "oklch": {
    "l": 0.35842,
    "c": 0.0591,
    "h": 217.4
  },
  "luminance": 0.04799
}

Semantic roles & 50–950 ramp

primary

#0B4451

secondary

#8D3D2B

accent

#5835F3

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04090A

muted

#797B7C

Preview Lab

Preview with #0B4451

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

Preview Lab → · Contrast checker → · Palette generator →