#0F3B66#0F3B66

#0F3B66 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.8% C 0.089 H 251.7°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#0F3B66
RGB	rgb(15, 59, 102)
HSL	hsl(210, 74%, 23%)
HSV	hsv(210, 85%, 40%)
CMYK	cmyk(85.3%, 42.2%, 0%, 60%)
CIE-LAB	lab(24.28, 2.54, -29.42)
CIE-LCH	lch(24.28, 29.53, 274.94°)
OKLab	oklab(34.75% -0.0278 -0.0841)
OKLCH	oklch(34.75% 0.089 251.7)
XYZ	xyz(4.1583, 4.1883, 13.1571)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3B66 #663A0F

analogous

#0F6665 #0F3B66 #0F1066

triadic

#0F3B66 #660F3B #3B660F

tetradic

#0F3B66 #650F66 #663A0F #10660F

square

#0F3B66 #650F66 #663A0F #10660F

split-complementary

#0F3B66 #660F10 #66650F

monochromatic

#040F1B #071C31 #0F3B66 #175A9B #1F79D1

Accessibility & contrast

On white

11.43

#0F3B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#0F3B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3B66

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3B66	#FFFFFF	#000000	##FFFFFF
##0F3B66	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263E68

Deuteranopia (green-blind)

#183665

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #0f3b66;
/* rgb */ color: rgb(15, 59, 102);
/* oklch */ color: oklch(34.8% 0.089 251.7);

Tailwind

colors: {
  custom: {
    50: '#5d7092',
    500: '#0f3b66',
    950: '#000000',
  },
}

SCSS

$custom: #0f3b66;
$custom-light: #5d7092;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3b66",
  "rgb": {
    "r": 15,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 209.655,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34752,
    "c": 0.08857,
    "h": 251.7
  },
  "luminance": 0.04189
}

Semantic roles & 50–950 ramp

primary

#0F3B66

secondary

#9F6832

accent

#9337F1

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #0F3B66

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

Preview Lab → · Contrast checker → · Palette generator →