#1C52A9#1C52A9

#1C52A9 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.6% C 0.151 H 259.8°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C52A9
RGB	rgb(28, 82, 169)
HSL	hsl(217, 72%, 39%)
HSV	hsv(217, 83%, 66%)
CMYK	cmyk(83.4%, 51.5%, 0%, 33.7%)
CIE-LAB	lab(36.26, 15.82, -51.60)
CIE-LCH	lch(36.26, 53.98, 287.05°)
OKLab	oklab(45.57% -0.0267 -0.1487)
OKLCH	oklch(45.57% 0.151 259.8)
XYZ	xyz(10.6550, 9.1447, 38.7320)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C52A9 #A9731C

analogous

#1C98A9 #1C52A9 #2C1CA9

triadic

#1C52A9 #A91C52 #52A91C

tetradic

#1C52A9 #A91C98 #A9731C #1CA92C

square

#1C52A9 #A91C98 #A9731C #1CA92C

split-complementary

#1C52A9 #A92C1C #98A91C

monochromatic

#0B1F40 #133974 #1C52A9 #276CDB #5B90E4

Accessibility & contrast

On white

7.42

#1C52A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#1C52A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C52A9

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C52A9	#FFFFFF	#000000	##FFFFFF
##1C52A9	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#185CAC

Deuteranopia (green-blind)

#004FA7

Tritanopia (blue-blind)

#006775

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c52a9;
/* rgb */ color: rgb(28, 82, 169);
/* oklch */ color: oklch(45.6% 0.151 259.8);

Tailwind

colors: {
  custom: {
    50: '#7181c3',
    500: '#1c52a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c52a9;
$custom-light: #7181c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c52a9",
  "rgb": {
    "r": 28,
    "g": 82,
    "b": 169
  },
  "hsl": {
    "h": 217.021,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.45569,
    "c": 0.15106,
    "h": 259.8
  },
  "luminance": 0.09146
}

Semantic roles & 50–950 ramp

primary

#1C52A9

secondary

#C89D59

accent

#A939EE

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C52A9

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

Preview Lab → · Contrast checker → · Palette generator →