#0B3A4E#0B3A4E

#0B3A4E is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.060 H 231.5°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#0B3A4E
RGB	rgb(11, 58, 78)
HSL	hsl(198, 75%, 17%)
HSV	hsv(198, 86%, 31%)
CMYK	cmyk(85.9%, 25.6%, 0%, 69.4%)
CIE-LAB	lab(22.47, -7.35, -16.56)
CIE-LCH	lch(22.47, 18.12, 246.08°)
OKLab	oklab(32.84% -0.0371 -0.0466)
OKLCH	oklch(32.84% 0.06 231.5)
XYZ	xyz(3.0257, 3.6469, 7.7507)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3A4E #4E1F0B

analogous

#0B4E40 #0B3A4E #0B194E

triadic

#0B3A4E #4E0B3A #3A4E0B

tetradic

#0B3A4E #400B4E #4E1F0B #194E0B

square

#0B3A4E #400B4E #4E1F0B #194E0B

split-complementary

#0B3A4E #4E0B19 #4E400B

monochromatic

#04141B #04141B #0B3A4E #136284 #1A8AB9

Accessibility & contrast

On white

12.14

#0B3A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#0B3A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3A4E

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3A4E	#FFFFFF	#000000	##FFFFFF
##0B3A4E	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30394F

Deuteranopia (green-blind)

#27334E

Tritanopia (blue-blind)

#003F41

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #0b3a4e;
/* rgb */ color: rgb(11, 58, 78);
/* oklch */ color: oklch(32.8% 0.060 231.5);

Tailwind

colors: {
  custom: {
    50: '#57707f',
    500: '#0b3a4e',
    950: '#000000',
  },
}

SCSS

$custom: #0b3a4e;
$custom-light: #57707f;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3a4e",
  "rgb": {
    "r": 11,
    "g": 58,
    "b": 78
  },
  "hsl": {
    "h": 197.91,
    "s": 75.281,
    "l": 17.451
  },
  "oklch": {
    "l": 0.3284,
    "c": 0.05959,
    "h": 231.5
  },
  "luminance": 0.03647
}

Semantic roles & 50–950 ramp

primary

#0B3A4E

secondary

#8A472B

accent

#6E36F2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #0B3A4E

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

Preview Lab → · Contrast checker → · Palette generator →