#1C3CA8#1C3CA8

#1C3CA8 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.177 H 265.8°. Best body text is #FFFFFF at 9.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C3CA8
RGB	rgb(28, 60, 168)
HSL	hsl(226, 71%, 38%)
HSV	hsv(226, 83%, 66%)
CMYK	cmyk(83.3%, 64.3%, 0%, 34.1%)
CIE-LAB	lab(30.17, 30.24, -60.93)
CIE-LCH	lch(30.17, 68.02, 296.39°)
OKLab	oklab(40.96% -0.013 -0.1764)
OKLCH	oklch(40.96% 0.177 265.8)
XYZ	xyz(9.1601, 6.3046, 37.7723)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3CA8 #A8881C

analogous

#1C82A8 #1C3CA8 #421CA8

triadic

#1C3CA8 #A81C3C #3CA81C

tetradic

#1C3CA8 #A81C82 #A8881C #1CA842

square

#1C3CA8 #A81C82 #A8881C #1CA842

split-complementary

#1C3CA8 #A8421C #82A81C

monochromatic

#0B173F #132974 #1C3CA8 #2650DB #5B7AE4

Accessibility & contrast

On white

9.29

#1C3CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#1C3CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3CA8

9.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3CA8	#FFFFFF	#000000	##FFFFFF
##1C3CA8	1.00	9.29	2.26	9.29
#FFFFFF	9.29	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAB

Deuteranopia (green-blind)

#0041A6

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c3ca8;
/* rgb */ color: rgb(28, 60, 168);
/* oklch */ color: oklch(41.0% 0.177 265.8);

Tailwind

colors: {
  custom: {
    50: '#7371c3',
    500: '#1c3ca8',
    950: '#000000',
  },
}

SCSS

$custom: #1c3ca8;
$custom-light: #7371c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3ca8",
  "rgb": {
    "r": 28,
    "g": 60,
    "b": 168
  },
  "hsl": {
    "h": 226.286,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40958,
    "c": 0.17691,
    "h": 265.8
  },
  "luminance": 0.06306
}

Semantic roles & 50–950 ramp

primary

#1C3CA8

secondary

#C7AE58

accent

#C53AEE

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1C3CA8

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

Preview Lab → · Contrast checker → · Palette generator →