#1C3C87#1C3C87

#1C3C87 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.0% C 0.131 H 263.8°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#1C3C87
RGB	rgb(28, 60, 135)
HSL	hsl(222, 66%, 32%)
HSV	hsv(222, 79%, 53%)
CMYK	cmyk(79.3%, 55.6%, 0%, 47.1%)
CIE-LAB	lab(27.37, 17.17, -45.33)
CIE-LCH	lch(27.37, 48.47, 290.74°)
OKLab	oklab(38% -0.0141 -0.1307)
OKLCH	oklch(38% 0.131 263.8)
XYZ	xyz(6.4664, 5.2271, 23.5851)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3C87 #87671C

analogous

#1C7287 #1C3C87 #321C87

triadic

#1C3C87 #871C3C #3C871C

tetradic

#1C3C87 #871C72 #87671C #1C8732

square

#1C3C87 #871C72 #87671C #1C8732

split-complementary

#1C3C87 #87321C #72871C

monochromatic

#070F22 #112554 #1C3C87 #2753BA #4571D8

Accessibility & contrast

On white

10.27

#1C3C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1C3C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3C87

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3C87	#FFFFFF	#000000	##FFFFFF
##1C3C87	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468A

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3c87;
/* rgb */ color: rgb(28, 60, 135);
/* oklch */ color: oklch(38.0% 0.131 263.8);

Tailwind

colors: {
  custom: {
    50: '#6a71ab',
    500: '#1c3c87',
    950: '#000000',
  },
}

SCSS

$custom: #1c3c87;
$custom-light: #6a71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3c87",
  "rgb": {
    "r": 28,
    "g": 60,
    "b": 135
  },
  "hsl": {
    "h": 222.056,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37999,
    "c": 0.13143,
    "h": 263.8
  },
  "luminance": 0.05228
}

Semantic roles & 50–950 ramp

primary

#1C3C87

secondary

#BA9745

accent

#B63FE9

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1C3C87

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

Preview Lab → · Contrast checker → · Palette generator →