#1C52AB#1C52AB

#1C52AB is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.7% C 0.154 H 260.1°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#1C52AB
RGB	rgb(28, 82, 171)
HSL	hsl(217, 72%, 39%)
HSV	hsv(217, 84%, 67%)
CMYK	cmyk(83.6%, 52%, 0%, 32.9%)
CIE-LAB	lab(36.41, 16.62, -52.56)
CIE-LCH	lch(36.41, 55.13, 287.55°)
OKLab	oklab(45.72% -0.0265 -0.1515)
OKLCH	oklch(45.72% 0.154 260.1)
XYZ	xyz(10.8442, 9.2204, 39.7284)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C52AB #AB751C

analogous

#1C9AAB #1C52AB #2E1CAB

triadic

#1C52AB #AB1C52 #52AB1C

tetradic

#1C52AB #AB1C9A #AB751C #1CAB2E

square

#1C52AB #AB1C9A #AB751C #1CAB2E

split-complementary

#1C52AB #AB2E1C #9AAB1C

monochromatic

#0B2042 #133976 #1C52AB #286CDC #5D90E4

Accessibility & contrast

On white

7.38

#1C52AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1C52AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C52AB

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C52AB	#FFFFFF	#000000	##FFFFFF
##1C52AB	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145CAE

Deuteranopia (green-blind)

#0050A9

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1c52ab;
/* rgb */ color: rgb(28, 82, 171);
/* oklch */ color: oklch(45.7% 0.154 260.1);

Tailwind

colors: {
  custom: {
    50: '#7281c5',
    500: '#1c52ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c52ab;
$custom-light: #7281c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1c52ab",
  "rgb": {
    "r": 28,
    "g": 82,
    "b": 171
  },
  "hsl": {
    "h": 217.343,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.45724,
    "c": 0.15378,
    "h": 260.1
  },
  "luminance": 0.09222
}

Semantic roles & 50–950 ramp

primary

#1C52AB

secondary

#C99F5A

accent

#AA39EF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1C52AB

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

Preview Lab → · Contrast checker → · Palette generator →