#0F355B#0F355B

#0F355B is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.4% C 0.080 H 251.7°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#0F355B
RGB	rgb(15, 53, 91)
HSL	hsl(210, 72%, 21%)
HSV	hsv(210, 84%, 36%)
CMYK	cmyk(83.5%, 41.8%, 0%, 64.3%)
CIE-LAB	lab(21.59, 2.04, -26.54)
CIE-LCH	lch(21.59, 26.62, 274.39°)
OKLab	oklab(32.42% -0.025 -0.0757)
OKLCH	oklch(32.42% 0.08 251.7)
XYZ	xyz(3.3577, 3.4027, 10.3753)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F355B #5B350F

analogous

#0F5B5B #0F355B #0F0F5B

triadic

#0F355B #5B0F35 #355B0F

tetradic

#0F355B #5B0F5B #5B350F #0F5B0F

square

#0F355B #5B0F5B #5B350F #0F5B0F

split-complementary

#0F355B #5B0F0F #5B5B0F

monochromatic

#040F1A #061626 #0F355B #185490 #2072C4

Accessibility & contrast

On white

12.50

#0F355B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#0F355B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F355B

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F355B	#FFFFFF	#000000	##FFFFFF
##0F355B	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23385D

Deuteranopia (green-blind)

#17315A

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #0f355b;
/* rgb */ color: rgb(15, 53, 91);
/* oklch */ color: oklch(32.4% 0.080 251.7);

Tailwind

colors: {
  custom: {
    50: '#5b6b89',
    500: '#0f355b',
    950: '#000000',
  },
}

SCSS

$custom: #0f355b;
$custom-light: #5b6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#0f355b",
  "rgb": {
    "r": 15,
    "g": 53,
    "b": 91
  },
  "hsl": {
    "h": 210,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32418,
    "c": 0.07977,
    "h": 251.7
  },
  "luminance": 0.03403
}

Semantic roles & 50–950 ramp

primary

#0F355B

secondary

#956331

accent

#9439EE

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #0F355B

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

Preview Lab → · Contrast checker → · Palette generator →