#0B4551#0B4551

#0B4551 is a dark, muted cyan. Relative luminance 0.049; OKLCH L 36.1% C 0.059 H 215.6°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#0B4551
RGB	rgb(11, 69, 81)
HSL	hsl(190, 76%, 18%)
HSV	hsv(190, 86%, 32%)
CMYK	cmyk(86.4%, 14.8%, 0%, 68.2%)
CIE-LAB	lab(26.51, -13.00, -12.30)
CIE-LCH	lch(26.51, 17.90, 223.43°)
OKLab	oklab(36.13% -0.0481 -0.0344)
OKLCH	oklch(36.13% 0.059 215.6)
XYZ	xyz(3.7507, 4.9210, 8.5352)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B4551 #51170B

analogous

#0B513A #0B4551 #0B2251

triadic

#0B4551 #510B45 #45510B

tetradic

#0B4551 #3A0B51 #51170B #22510B

square

#0B4551 #3A0B51 #51170B #22510B

split-complementary

#0B4551 #510B22 #513A0B

monochromatic

#04171B #04171B #0B4551 #127387 #1AA1BD

Accessibility & contrast

On white

10.58

#0B4551 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#0B4551 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B4551

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B4551	#FFFFFF	#000000	##FFFFFF
##0B4551	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4352

Deuteranopia (green-blind)

#333C51

Tritanopia (blue-blind)

#004949

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #0b4551;
/* rgb */ color: rgb(11, 69, 81);
/* oklch */ color: oklch(36.1% 0.059 215.6);

Tailwind

colors: {
  custom: {
    50: '#587881',
    500: '#0b4551',
    950: '#000000',
  },
}

SCSS

$custom: #0b4551;
$custom-light: #587881;
$custom-dark: #000000;

JSON

{
  "hex": "#0b4551",
  "rgb": {
    "r": 11,
    "g": 69,
    "b": 81
  },
  "hsl": {
    "h": 190.286,
    "s": 76.087,
    "l": 18.039
  },
  "oklch": {
    "l": 0.36127,
    "c": 0.05908,
    "h": 215.6
  },
  "luminance": 0.04921
}

Semantic roles & 50–950 ramp

primary

#0B4551

secondary

#8D3C2B

accent

#5635F3

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04090A

muted

#797B7C

Preview Lab

Preview with #0B4551

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

Preview Lab → · Contrast checker → · Palette generator →