#1F52AD#1F52AD

#1F52AD is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.0% C 0.156 H 261.0°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#1F52AD
RGB	rgb(31, 82, 173)
HSL	hsl(218, 70%, 40%)
HSV	hsv(218, 82%, 68%)
CMYK	cmyk(82.1%, 52.6%, 0%, 32.2%)
CIE-LAB	lab(36.63, 17.69, -53.37)
CIE-LCH	lch(36.63, 56.23, 288.34°)
OKLab	oklab(45.97% -0.0245 -0.1538)
OKLCH	oklch(45.97% 0.156 261)
XYZ	xyz(11.1225, 9.3417, 40.7440)
Luminance	0.0934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F52AD #AD7A1F

analogous

#1F99AD #1F52AD #331FAD

triadic

#1F52AD #AD1F52 #52AD1F

tetradic

#1F52AD #AD1F99 #AD7A1F #1FAD33

square

#1F52AD #AD1F99 #AD7A1F #1FAD33

split-complementary

#1F52AD #AD331F #99AD1F

monochromatic

#0C2145 #163979 #1F52AD #2F6DDA #6391E3

Accessibility & contrast

On white

7.32

#1F52AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#1F52AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F52AD

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F52AD	#FFFFFF	#000000	##FFFFFF
##1F52AD	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#105DB0

Deuteranopia (green-blind)

#0050AB

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f52ad;
/* rgb */ color: rgb(31, 82, 173);
/* oklch */ color: oklch(46.0% 0.156 261.0);

Tailwind

colors: {
  custom: {
    50: '#7381c6',
    500: '#1f52ad',
    950: '#000000',
  },
}

SCSS

$custom: #1f52ad;
$custom-light: #7381c6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f52ad",
  "rgb": {
    "r": 31,
    "g": 82,
    "b": 173
  },
  "hsl": {
    "h": 218.451,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.45969,
    "c": 0.15579,
    "h": 261
  },
  "luminance": 0.09343
}

Semantic roles & 50–950 ramp

primary

#1F52AD

secondary

#C8A360

accent

#AD3BEC

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1F52AD

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

Preview Lab → · Contrast checker → · Palette generator →