#0F3440#0F3440

#0F3440 is a dark, muted cyan. Relative luminance 0.029; OKLCH L 30.5% C 0.046 H 223.1°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#0F3440
RGB	rgb(15, 52, 64)
HSL	hsl(195, 62%, 15%)
HSV	hsv(195, 77%, 25%)
CMYK	cmyk(76.6%, 18.8%, 0%, 74.9%)
CIE-LAB	lab(19.75, -8.44, -11.34)
CIE-LCH	lch(19.75, 14.14, 233.36°)
OKLab	oklab(30.48% -0.0339 -0.0317)
OKLCH	oklch(30.48% 0.046 223.1)
XYZ	xyz(2.3500, 2.9274, 5.2907)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3440 #401B0F

analogous

#0F4033 #0F3440 #0F1B40

triadic

#0F3440 #400F34 #34400F

tetradic

#0F3440 #330F40 #401B0F #1B400F

square

#0F3440 #330F40 #401B0F #1B400F

split-complementary

#0F3440 #400F1B #40330F

monochromatic

#061419 #061419 #0F3440 #1B5C72 #2685A3

Accessibility & contrast

On white

13.24

#0F3440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#0F3440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3440

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3440	#FFFFFF	#000000	##FFFFFF
##0F3440	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3341

Deuteranopia (green-blind)

#262E40

Tritanopia (blue-blind)

#003838

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #0f3440;
/* rgb */ color: rgb(15, 52, 64);
/* oklch */ color: oklch(30.5% 0.046 223.1);

Tailwind

colors: {
  custom: {
    50: '#556b74',
    500: '#0f3440',
    950: '#000000',
  },
}

SCSS

$custom: #0f3440;
$custom-light: #556b74;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3440",
  "rgb": {
    "r": 15,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 194.694,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.30476,
    "c": 0.04638,
    "h": 223.1
  },
  "luminance": 0.02928
}

Semantic roles & 50–950 ramp

primary

#0F3440

secondary

#7A4230

accent

#6A43E5

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #0F3440

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

Preview Lab → · Contrast checker → · Palette generator →