#1C52A1#1C52A1

#1C52A1 is a dark, vivid blue. Relative luminance 0.089; OKLCH L 45.0% C 0.140 H 258.5°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#1C52A1
RGB	rgb(28, 82, 161)
HSL	hsl(216, 70%, 37%)
HSV	hsv(216, 83%, 63%)
CMYK	cmyk(82.6%, 49.1%, 0%, 36.9%)
CIE-LAB	lab(35.70, 12.62, -47.73)
CIE-LCH	lch(35.70, 49.37, 284.81°)
OKLab	oklab(44.96% -0.0279 -0.1373)
OKLCH	oklch(44.96% 0.14 258.5)
XYZ	xyz(9.9268, 8.8535, 34.8970)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C52A1 #A16B1C

analogous

#1C95A1 #1C52A1 #291CA1

triadic

#1C52A1 #A11C52 #52A11C

tetradic

#1C52A1 #A11C95 #A16B1C #1CA129

square

#1C52A1 #A11C95 #A16B1C #1CA129

split-complementary

#1C52A1 #A1291C #95A11C

monochromatic

#0A1D39 #13376D #1C52A1 #256DD5 #568FE2

Accessibility & contrast

On white

7.58

#1C52A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#1C52A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C52A1

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C52A1	#FFFFFF	#000000	##FFFFFF
##1C52A1	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245AA4

Deuteranopia (green-blind)

#004E9F

Tritanopia (blue-blind)

#006572

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1c52a1;
/* rgb */ color: rgb(28, 82, 161);
/* oklch */ color: oklch(45.0% 0.140 258.5);

Tailwind

colors: {
  custom: {
    50: '#6f82bd',
    500: '#1c52a1',
    950: '#000000',
  },
}

SCSS

$custom: #1c52a1;
$custom-light: #6f82bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c52a1",
  "rgb": {
    "r": 28,
    "g": 82,
    "b": 161
  },
  "hsl": {
    "h": 215.639,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.4496,
    "c": 0.14009,
    "h": 258.5
  },
  "luminance": 0.08855
}

Semantic roles & 50–950 ramp

primary

#1C52A1

secondary

#C59754

accent

#A53BED

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #1C52A1

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

Preview Lab → · Contrast checker → · Palette generator →