#1C3D87#1C3D87

#1C3D87 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.130 H 263.4°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#1C3D87
RGB	rgb(28, 61, 135)
HSL	hsl(221, 66%, 32%)
HSV	hsv(221, 79%, 53%)
CMYK	cmyk(79.3%, 54.8%, 0%, 47.1%)
CIE-LAB	lab(27.66, 16.47, -44.86)
CIE-LCH	lch(27.66, 47.79, 290.16°)
OKLab	oklab(38.22% -0.0149 -0.1293)
OKLCH	oklch(38.22% 0.13 263.4)
XYZ	xyz(6.5192, 5.3329, 23.6027)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3D87 #87661C

analogous

#1C7387 #1C3D87 #301C87

triadic

#1C3D87 #871C3D #3D871C

tetradic

#1C3D87 #871C73 #87661C #1C8730

square

#1C3D87 #871C73 #87661C #1C8730

split-complementary

#1C3D87 #87301C #73871C

monochromatic

#070F22 #112654 #1C3D87 #2754BA #4572D8

Accessibility & contrast

On white

10.16

#1C3D87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#1C3D87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3D87

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3D87	#FFFFFF	#000000	##FFFFFF
##1C3D87	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04468A

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#004F5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3d87;
/* rgb */ color: rgb(28, 61, 135);
/* oklch */ color: oklch(38.2% 0.130 263.4);

Tailwind

colors: {
  custom: {
    50: '#6a71ab',
    500: '#1c3d87',
    950: '#000000',
  },
}

SCSS

$custom: #1c3d87;
$custom-light: #6a71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3d87",
  "rgb": {
    "r": 28,
    "g": 61,
    "b": 135
  },
  "hsl": {
    "h": 221.495,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38219,
    "c": 0.13013,
    "h": 263.4
  },
  "luminance": 0.05334
}

Semantic roles & 50–950 ramp

primary

#1C3D87

secondary

#BA9645

accent

#B43FE9

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1C3D87

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

Preview Lab → · Contrast checker → · Palette generator →