#0F4558#0F4558

#0F4558 is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 36.6% C 0.063 H 226.5°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#0F4558
RGB	rgb(15, 69, 88)
HSL	hsl(196, 71%, 20%)
HSV	hsv(196, 83%, 35%)
CMYK	cmyk(83%, 21.6%, 0%, 65.5%)
CIE-LAB	lab(26.91, -9.81, -16.23)
CIE-LCH	lch(26.91, 18.96, 238.86°)
OKLab	oklab(36.58% -0.0432 -0.0455)
OKLCH	oklch(36.58% 0.063 226.5)
XYZ	xyz(4.0858, 5.0619, 9.9923)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4558 #58220F

analogous

#0F5846 #0F4558 #0F2158

triadic

#0F4558 #580F45 #45580F

tetradic

#0F4558 #460F58 #58220F #21580F

square

#0F4558 #460F58 #58220F #21580F

split-complementary

#0F4558 #580F21 #58460F

monochromatic

#04141A #061C24 #0F4558 #186E8C #2197C1

Accessibility & contrast

On white

10.44

#0F4558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#0F4558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4558

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4558	#FFFFFF	#000000	##FFFFFF
##0F4558	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4459

Deuteranopia (green-blind)

#313D58

Tritanopia (blue-blind)

#004B4B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #0f4558;
/* rgb */ color: rgb(15, 69, 88);
/* oklch */ color: oklch(36.6% 0.063 226.5);

Tailwind

colors: {
  custom: {
    50: '#5b7887',
    500: '#0f4558',
    950: '#000000',
  },
}

SCSS

$custom: #0f4558;
$custom-light: #5b7887;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4558",
  "rgb": {
    "r": 15,
    "g": 69,
    "b": 88
  },
  "hsl": {
    "h": 195.616,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.36579,
    "c": 0.06276,
    "h": 226.5
  },
  "luminance": 0.05062
}

Semantic roles & 50–950 ramp

primary

#0F4558

secondary

#924A31

accent

#693AEE

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04090B

muted

#797B7C

Preview Lab

Preview with #0F4558

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

Preview Lab → · Contrast checker → · Palette generator →