#1C53B4#1C53B4

#1C53B4 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.7% C 0.165 H 260.9°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#1C53B4
RGB	rgb(28, 83, 180)
HSL	hsl(218, 73%, 41%)
HSV	hsv(218, 84%, 71%)
CMYK	cmyk(84.4%, 53.9%, 0%, 29.4%)
CIE-LAB	lab(37.35, 19.53, -56.36)
CIE-LCH	lch(37.35, 59.65, 289.12°)
OKLab	oklab(46.65% -0.0261 -0.1626)
OKLCH	oklch(46.65% 0.165 260.9)
XYZ	xyz(11.8074, 9.7272, 44.4264)
Luminance	0.0973 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C53B4 #B47D1C

analogous

#1C9FB4 #1C53B4 #311CB4

triadic

#1C53B4 #B41C53 #53B41C

tetradic

#1C53B4 #B41C9F #B47D1C #1CB431

square

#1C53B4 #B41C9F #B47D1C #1CB431

split-complementary

#1C53B4 #B4311C #9FB41C

monochromatic

#0C224A #143B7F #1C53B4 #2F6EDF #6493E7

Accessibility & contrast

On white

7.13

#1C53B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#1C53B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C53B4

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C53B4	#FFFFFF	#000000	##FFFFFF
##1C53B4	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FB7

Deuteranopia (green-blind)

#0051B2

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #1c53b4;
/* rgb */ color: rgb(28, 83, 180);
/* oklch */ color: oklch(46.7% 0.165 260.9);

Tailwind

colors: {
  custom: {
    50: '#7482cb',
    500: '#1c53b4',
    950: '#000000',
  },
}

SCSS

$custom: #1c53b4;
$custom-light: #7482cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c53b4",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 180
  },
  "hsl": {
    "h": 218.289,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.46652,
    "c": 0.16473,
    "h": 260.9
  },
  "luminance": 0.09729
}

Semantic roles & 50–950 ramp

primary

#1C53B4

secondary

#CCA560

accent

#AD38F0

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1C53B4

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

Preview Lab → · Contrast checker → · Palette generator →