#1C3586#1C3586

#1C3586 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.4% C 0.139 H 266.3°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1C3586
RGB	rgb(28, 53, 134)
HSL	hsl(226, 65%, 32%)
HSV	hsv(226, 79%, 53%)
CMYK	cmyk(79.1%, 60.4%, 0%, 47.5%)
CIE-LAB	lab(25.30, 21.65, -48.08)
CIE-LCH	lch(25.30, 52.73, 294.25°)
OKLab	oklab(36.42% -0.0089 -0.1389)
OKLCH	oklch(36.42% 0.139 266.3)
XYZ	xyz(6.0536, 4.5136, 23.1018)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3586 #866D1C

analogous

#1C6A86 #1C3586 #381C86

triadic

#1C3586 #861C35 #35861C

tetradic

#1C3586 #861C6A #866D1C #1C8638

square

#1C3586 #861C6A #866D1C #1C8638

split-complementary

#1C3586 #86381C #6A861C

monochromatic

#070D21 #112153 #1C3586 #2749B9 #4467D8

Accessibility & contrast

On white

11.04

#1C3586 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C3586 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3586

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3586	#FFFFFF	#000000	##FFFFFF
##1C3586	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004189

Deuteranopia (green-blind)

#003784

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c3586;
/* rgb */ color: rgb(28, 53, 134);
/* oklch */ color: oklch(36.4% 0.139 266.3);

Tailwind

colors: {
  custom: {
    50: '#6a6baa',
    500: '#1c3586',
    950: '#000000',
  },
}

SCSS

$custom: #1c3586;
$custom-light: #6a6baa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3586",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 134
  },
  "hsl": {
    "h": 225.849,
    "s": 65.432,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36415,
    "c": 0.13915,
    "h": 266.3
  },
  "luminance": 0.04514
}

Semantic roles & 50–950 ramp

primary

#1C3586

secondary

#B99E45

accent

#C13FE8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1C3586

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

Preview Lab → · Contrast checker → · Palette generator →