#0F3B7E#0F3B7E

#0F3B7E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.123 H 259.3°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#0F3B7E
RGB	rgb(15, 59, 126)
HSL	hsl(216, 79%, 28%)
HSV	hsv(216, 88%, 49%)
CMYK	cmyk(88.1%, 53.2%, 0%, 50.6%)
CIE-LAB	lab(25.97, 12.80, -42.01)
CIE-LCH	lch(25.97, 43.91, 286.95°)
OKLab	oklab(36.59% -0.023 -0.1211)
OKLCH	oklch(36.59% 0.123 259.3)
XYZ	xyz(5.5255, 4.7351, 20.3574)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3B7E #7E520F

analogous

#0F727E #0F3B7E #1A0F7E

triadic

#0F3B7E #7E0F3B #3B7E0F

tetradic

#0F3B7E #7E0F72 #7E520F #0F7E1A

square

#0F3B7E #7E0F72 #7E520F #0F7E1A

split-complementary

#0F3B7E #7E1A0F #727E0F

monochromatic

#030D1B #082147 #0F3B7E #1655B5 #2370E5

Accessibility & contrast

On white

10.78

#0F3B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#0F3B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3B7E

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3B7E	#FFFFFF	#000000	##FFFFFF
##0F3B7E	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4380

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #0f3b7e;
/* rgb */ color: rgb(15, 59, 126);
/* oklch */ color: oklch(36.6% 0.123 259.3);

Tailwind

colors: {
  custom: {
    50: '#6470a4',
    500: '#0f3b7e',
    950: '#000000',
  },
}

SCSS

$custom: #0f3b7e;
$custom-light: #6470a4;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3b7e",
  "rgb": {
    "r": 15,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 216.216,
    "s": 78.723,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36592,
    "c": 0.12325,
    "h": 259.3
  },
  "luminance": 0.04736
}

Semantic roles & 50–950 ramp

primary

#0F3B7E

secondary

#B58234

accent

#A833F5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #0F3B7E

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

Preview Lab → · Contrast checker → · Palette generator →