#1C53A9#1C53A9

#1C53A9 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.8% C 0.150 H 259.4°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C53A9
RGB	rgb(28, 83, 169)
HSL	hsl(217, 72%, 39%)
HSV	hsv(217, 83%, 66%)
CMYK	cmyk(83.4%, 50.9%, 0%, 33.7%)
CIE-LAB	lab(36.55, 15.15, -51.14)
CIE-LCH	lch(36.55, 53.34, 286.51°)
OKLab	oklab(45.79% -0.0274 -0.1473)
OKLCH	oklch(45.79% 0.15 259.4)
XYZ	xyz(10.7310, 9.2966, 38.7573)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C53A9 #A9721C

analogous

#1C99A9 #1C53A9 #2B1CA9

triadic

#1C53A9 #A91C53 #53A91C

tetradic

#1C53A9 #A91C99 #A9721C #1CA92B

square

#1C53A9 #A91C99 #A9721C #1CA92B

split-complementary

#1C53A9 #A92B1C #99A91C

monochromatic

#0B1F40 #133974 #1C53A9 #276DDB #5B91E4

Accessibility & contrast

On white

7.34

#1C53A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#1C53A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C53A9

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C53A9	#FFFFFF	#000000	##FFFFFF
##1C53A9	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)

#1C5DAC

Deuteranopia (green-blind)

#0050A7

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1c53a9;
/* rgb */ color: rgb(28, 83, 169);
/* oklch */ color: oklch(45.8% 0.150 259.4);

Tailwind

colors: {
  custom: {
    50: '#7182c3',
    500: '#1c53a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c53a9;
$custom-light: #7182c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c53a9",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 169
  },
  "hsl": {
    "h": 216.596,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45789,
    "c": 0.14983,
    "h": 259.4
  },
  "luminance": 0.09298
}

Semantic roles & 50–950 ramp

primary

#1C53A9

secondary

#C89D59

accent

#A839EE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C53A9

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

Preview Lab → · Contrast checker → · Palette generator →