#0F405E#0F405E

#0F405E is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.072 H 240.8°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#0F405E
RGB	rgb(15, 64, 94)
HSL	hsl(203, 72%, 21%)
HSV	hsv(203, 84%, 37%)
CMYK	cmyk(84%, 31.9%, 0%, 63.1%)
CIE-LAB	lab(25.49, -4.20, -22.33)
CIE-LCH	lch(25.49, 22.72, 259.35°)
OKLab	oklab(35.55% -0.0354 -0.0632)
OKLCH	oklch(35.55% 0.072 240.8)
XYZ	xyz(4.0500, 4.5760, 11.2573)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F405E #5E2D0F

analogous

#0F5E55 #0F405E #0F195E

triadic

#0F405E #5E0F40 #405E0F

tetradic

#0F405E #550F5E #5E2D0F #195E0F

square

#0F405E #550F5E #5E2D0F #195E0F

split-complementary

#0F405E #5E0F19 #5E550F

monochromatic

#04121A #071C29 #0F405E #176493 #2088C8

Accessibility & contrast

On white

10.96

#0F405E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#0F405E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F405E

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F405E	#FFFFFF	#000000	##FFFFFF
##0F405E	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32405F

Deuteranopia (green-blind)

#27395D

Tritanopia (blue-blind)

#00474B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #0f405e;
/* rgb */ color: rgb(15, 64, 94);
/* oklch */ color: oklch(35.5% 0.072 240.8);

Tailwind

colors: {
  custom: {
    50: '#5c748c',
    500: '#0f405e',
    950: '#000000',
  },
}

SCSS

$custom: #0f405e;
$custom-light: #5c748c;
$custom-dark: #000000;

JSON

{
  "hex": "#0f405e",
  "rgb": {
    "r": 15,
    "g": 64,
    "b": 94
  },
  "hsl": {
    "h": 202.785,
    "s": 72.477,
    "l": 21.373
  },
  "oklch": {
    "l": 0.35548,
    "c": 0.07247,
    "h": 240.8
  },
  "luminance": 0.04577
}

Semantic roles & 50–950 ramp

primary

#0F405E

secondary

#975831

accent

#7E39EF

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #0F405E

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

Preview Lab → · Contrast checker → · Palette generator →