#1F52AC#1F52AC

#1F52AC is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.154 H 260.8°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F52AC
RGB	rgb(31, 82, 172)
HSL	hsl(218, 69%, 40%)
HSV	hsv(218, 82%, 67%)
CMYK	cmyk(82%, 52.3%, 0%, 32.5%)
CIE-LAB	lab(36.56, 17.30, -52.90)
CIE-LCH	lch(36.56, 55.65, 288.11°)
OKLab	oklab(45.89% -0.0246 -0.1524)
OKLCH	oklch(45.89% 0.154 260.8)
XYZ	xyz(11.0261, 9.3031, 40.2363)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F52AC #AC791F

analogous

#1F98AC #1F52AC #331FAC

triadic

#1F52AC #AC1F52 #52AC1F

tetradic

#1F52AC #AC1F98 #AC791F #1FAC33

square

#1F52AC #AC1F98 #AC791F #1FAC33

split-complementary

#1F52AC #AC331F #98AC1F

monochromatic

#0C2144 #163978 #1F52AC #2F6CD9 #6391E3

Accessibility & contrast

On white

7.34

#1F52AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#1F52AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F52AC

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F52AC	#FFFFFF	#000000	##FFFFFF
##1F52AC	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135DAF

Deuteranopia (green-blind)

#0050AA

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1f52ac;
/* rgb */ color: rgb(31, 82, 172);
/* oklch */ color: oklch(45.9% 0.154 260.8);

Tailwind

colors: {
  custom: {
    50: '#7381c5',
    500: '#1f52ac',
    950: '#000000',
  },
}

SCSS

$custom: #1f52ac;
$custom-light: #7381c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f52ac",
  "rgb": {
    "r": 31,
    "g": 82,
    "b": 172
  },
  "hsl": {
    "h": 218.298,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45891,
    "c": 0.15442,
    "h": 260.8
  },
  "luminance": 0.09304
}

Semantic roles & 50–950 ramp

primary

#1F52AC

secondary

#C8A25F

accent

#AC3CEC

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1F52AC

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

Preview Lab → · Contrast checker → · Palette generator →