#1C3C86#1C3C86

#1C3C86 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.9% C 0.130 H 263.7°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C3C86
RGB	rgb(28, 60, 134)
HSL	hsl(222, 65%, 32%)
HSV	hsv(222, 79%, 53%)
CMYK	cmyk(79.1%, 55.2%, 0%, 47.5%)
CIE-LAB	lab(27.29, 16.76, -44.84)
CIE-LCH	lch(27.29, 47.87, 290.50°)
OKLab	oklab(37.92% -0.0142 -0.1292)
OKLCH	oklch(37.92% 0.13 263.7)
XYZ	xyz(6.3963, 5.1991, 23.2161)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3C86 #86661C

analogous

#1C7186 #1C3C86 #311C86

triadic

#1C3C86 #861C3C #3C861C

tetradic

#1C3C86 #861C71 #86661C #1C8631

square

#1C3C86 #861C71 #86661C #1C8631

split-complementary

#1C3C86 #86311C #71861C

monochromatic

#070F21 #112553 #1C3C86 #2753B9 #4471D8

Accessibility & contrast

On white

10.29

#1C3C86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1C3C86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3C86

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3C86	#FFFFFF	#000000	##FFFFFF
##1C3C86	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024689

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1c3c86;
/* rgb */ color: rgb(28, 60, 134);
/* oklch */ color: oklch(37.9% 0.130 263.7);

Tailwind

colors: {
  custom: {
    50: '#6a71aa',
    500: '#1c3c86',
    950: '#000000',
  },
}

SCSS

$custom: #1c3c86;
$custom-light: #6a71aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3c86",
  "rgb": {
    "r": 28,
    "g": 60,
    "b": 134
  },
  "hsl": {
    "h": 221.887,
    "s": 65.432,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37915,
    "c": 0.12999,
    "h": 263.7
  },
  "luminance": 0.052
}

Semantic roles & 50–950 ramp

primary

#1C3C86

secondary

#B99645

accent

#B53FE8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1C3C86

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

Preview Lab → · Contrast checker → · Palette generator →