#1F479C#1F479C

#1F479C is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.2% C 0.146 H 262.8°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F479C
RGB	rgb(31, 71, 156)
HSL	hsl(221, 67%, 37%)
HSV	hsv(221, 80%, 61%)
CMYK	cmyk(80.1%, 54.5%, 0%, 38.8%)
CIE-LAB	lab(32.25, 18.36, -50.29)
CIE-LCH	lch(32.25, 53.54, 290.06°)
OKLab	oklab(42.24% -0.0183 -0.145)
OKLCH	oklch(42.24% 0.146 262.8)
XYZ	xyz(8.8169, 7.1971, 32.3705)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F479C #9C741F

analogous

#1F869C #1F479C #361F9C

triadic

#1F479C #9C1F47 #479C1F

tetradic

#1F479C #9C1F86 #9C741F #1F9C36

square

#1F479C #9C1F86 #9C741F #1F9C36

split-complementary

#1F479C #9C361F #869C1F

monochromatic

#0B1936 #153069 #1F479C #295ECF #5883DE

Accessibility & contrast

On white

8.61

#1F479C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1F479C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F479C

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F479C	#FFFFFF	#000000	##FFFFFF
##1F479C	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01529F

Deuteranopia (green-blind)

#00469A

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1f479c;
/* rgb */ color: rgb(31, 71, 156);
/* oklch */ color: oklch(42.2% 0.146 262.8);

Tailwind

colors: {
  custom: {
    50: '#6f79ba',
    500: '#1f479c',
    950: '#000000',
  },
}

SCSS

$custom: #1f479c;
$custom-light: #6f79ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f479c",
  "rgb": {
    "r": 31,
    "g": 71,
    "b": 156
  },
  "hsl": {
    "h": 220.8,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42237,
    "c": 0.14614,
    "h": 262.8
  },
  "luminance": 0.07198
}

Semantic roles & 50–950 ramp

primary

#1F479C

secondary

#C19F55

accent

#B33EEA

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F479C

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

Preview Lab → · Contrast checker → · Palette generator →