#1F53C2#1F53C2

#1F53C2 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.9% C 0.183 H 262.7°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#1F53C2
RGB	rgb(31, 83, 194)
HSL	hsl(221, 72%, 44%)
HSV	hsv(221, 84%, 76%)
CMYK	cmyk(84%, 57.2%, 0%, 23.9%)
CIE-LAB	lab(38.50, 25.27, -62.69)
CIE-LCH	lch(38.50, 67.59, 291.95°)
OKLab	oklab(47.88% -0.0232 -0.1812)
OKLCH	oklch(47.88% 0.183 262.7)
XYZ	xyz(13.3924, 10.3712, 52.3245)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F53C2 #C28E1F

analogous

#1FA5C2 #1F53C2 #3D1FC2

triadic

#1F53C2 #C21F53 #53C21F

tetradic

#1F53C2 #C21FA5 #C28E1F #1FC23D

square

#1F53C2 #C21FA5 #C28E1F #1FC23D

split-complementary

#1F53C2 #C23D1F #A5C21F

monochromatic

#0E2658 #173C8D #1F53C2 #3E72E0 #7398E9

Accessibility & contrast

On white

6.83

#1F53C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#1F53C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F53C2

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F53C2	#FFFFFF	#000000	##FFFFFF
##1F53C2	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C6

Deuteranopia (green-blind)

#0054C0

Tritanopia (blue-blind)

#006F82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #1f53c2;
/* rgb */ color: rgb(31, 83, 194);
/* oklch */ color: oklch(47.9% 0.183 262.7);

Tailwind

colors: {
  custom: {
    50: '#7882d5',
    500: '#1f53c2',
    950: '#000000',
  },
}

SCSS

$custom: #1f53c2;
$custom-light: #7882d5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f53c2",
  "rgb": {
    "r": 31,
    "g": 83,
    "b": 194
  },
  "hsl": {
    "h": 220.859,
    "s": 72.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47884,
    "c": 0.1827,
    "h": 262.7
  },
  "luminance": 0.10373
}

Semantic roles & 50–950 ramp

primary

#1F53C2

secondary

#CFB06D

accent

#B539EF

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #1F53C2

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

Preview Lab → · Contrast checker → · Palette generator →