#0F4258#0F4258

#0F4258 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.7% C 0.064 H 231.6°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#0F4258
RGB	rgb(15, 66, 88)
HSL	hsl(198, 71%, 20%)
HSV	hsv(198, 83%, 35%)
CMYK	cmyk(83%, 25%, 0%, 65.5%)
CIE-LAB	lab(25.87, -7.92, -17.84)
CIE-LCH	lch(25.87, 19.52, 246.06°)
OKLab	oklab(35.75% -0.0398 -0.0502)
OKLCH	oklch(35.75% 0.064 231.6)
XYZ	xyz(3.9060, 4.7021, 9.9324)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4258 #58250F

analogous

#0F5849 #0F4258 #0F1E58

triadic

#0F4258 #580F42 #42580F

tetradic

#0F4258 #490F58 #58250F #1E580F

square

#0F4258 #490F58 #58250F #1E580F

split-complementary

#0F4258 #580F1E #58490F

monochromatic

#04141A #061B24 #0F4258 #18698C #2190C1

Accessibility & contrast

On white

10.82

#0F4258 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#0F4258 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4258

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4258	#FFFFFF	#000000	##FFFFFF
##0F4258	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374159

Deuteranopia (green-blind)

#2D3A58

Tritanopia (blue-blind)

#004849

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #0f4258;
/* rgb */ color: rgb(15, 66, 88);
/* oklch */ color: oklch(35.7% 0.064 231.6);

Tailwind

colors: {
  custom: {
    50: '#5a7687',
    500: '#0f4258',
    950: '#000000',
  },
}

SCSS

$custom: #0f4258;
$custom-light: #5a7687;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4258",
  "rgb": {
    "r": 15,
    "g": 66,
    "b": 88
  },
  "hsl": {
    "h": 198.082,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.35746,
    "c": 0.06411,
    "h": 231.6
  },
  "luminance": 0.04703
}

Semantic roles & 50–950 ramp

primary

#0F4258

secondary

#924E31

accent

#703AEE

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #0F4258

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

Preview Lab → · Contrast checker → · Palette generator →