#1C3E87#1C3E87

#1C3E87 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.129 H 263.0°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C3E87
RGB	rgb(28, 62, 135)
HSL	hsl(221, 66%, 32%)
HSV	hsv(221, 79%, 53%)
CMYK	cmyk(79.3%, 54.1%, 0%, 47.1%)
CIE-LAB	lab(27.95, 15.77, -44.39)
CIE-LCH	lch(27.95, 47.11, 289.56°)
OKLab	oklab(38.44% -0.0157 -0.1279)
OKLCH	oklch(38.44% 0.129 263)
XYZ	xyz(6.5731, 5.4406, 23.6207)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3E87 #87651C

analogous

#1C7387 #1C3E87 #301C87

triadic

#1C3E87 #871C3E #3E871C

tetradic

#1C3E87 #871C73 #87651C #1C8730

square

#1C3E87 #871C73 #87651C #1C8730

split-complementary

#1C3E87 #87301C #73871C

monochromatic

#070F22 #112754 #1C3E87 #2755BA #4574D8

Accessibility & contrast

On white

10.06

#1C3E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1C3E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3E87

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3E87	#FFFFFF	#000000	##FFFFFF
##1C3E87	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09478A

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1c3e87;
/* rgb */ color: rgb(28, 62, 135);
/* oklch */ color: oklch(38.4% 0.129 263.0);

Tailwind

colors: {
  custom: {
    50: '#6a72ab',
    500: '#1c3e87',
    950: '#000000',
  },
}

SCSS

$custom: #1c3e87;
$custom-light: #6a72ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3e87",
  "rgb": {
    "r": 28,
    "g": 62,
    "b": 135
  },
  "hsl": {
    "h": 220.935,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38441,
    "c": 0.12883,
    "h": 263
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#1C3E87

secondary

#BA9545

accent

#B33FE9

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1C3E87

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

Preview Lab → · Contrast checker → · Palette generator →