#0B3A4B#0B3A4B

#0B3A4B is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.7% C 0.057 H 227.3°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#0B3A4B
RGB	rgb(11, 58, 75)
HSL	hsl(196, 74%, 17%)
HSV	hsv(196, 85%, 29%)
CMYK	cmyk(85.3%, 22.7%, 0%, 70.6%)
CIE-LAB	lab(22.32, -8.56, -14.80)
CIE-LCH	lch(22.32, 17.10, 239.94°)
OKLab	oklab(32.67% -0.0384 -0.0415)
OKLCH	oklch(32.67% 0.057 227.3)
XYZ	xyz(2.9205, 3.6049, 7.1971)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3A4B #4B1C0B

analogous

#0B4B3C #0B3A4B #0B1A4B

triadic

#0B3A4B #4B0B3A #3A4B0B

tetradic

#0B3A4B #3C0B4B #4B1C0B #1A4B0B

square

#0B3A4B #3C0B4B #4B1C0B #1A4B0B

split-complementary

#0B3A4B #4B0B1A #4B3C0B

monochromatic

#04151B #04151B #0B3A4B #136380 #1B8DB6

Accessibility & contrast

On white

12.20

#0B3A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#0B3A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3A4B

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3A4B	#FFFFFF	#000000	##FFFFFF
##0B3A4B	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394C

Deuteranopia (green-blind)

#28334B

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #0b3a4b;
/* rgb */ color: rgb(11, 58, 75);
/* oklch */ color: oklch(32.7% 0.057 227.3);

Tailwind

colors: {
  custom: {
    50: '#56707d',
    500: '#0b3a4b',
    950: '#000000',
  },
}

SCSS

$custom: #0b3a4b;
$custom-light: #56707d;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3a4b",
  "rgb": {
    "r": 11,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 195.938,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.32672,
    "c": 0.05656,
    "h": 227.3
  },
  "luminance": 0.03605
}

Semantic roles & 50–950 ramp

primary

#0B3A4B

secondary

#87432B

accent

#6837F1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0B3A4B

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

Preview Lab → · Contrast checker → · Palette generator →