#1C3682#1C3682

#1C3682 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.132 H 265.7°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1C3682
RGB	rgb(28, 54, 130)
HSL	hsl(225, 65%, 31%)
HSV	hsv(225, 78%, 51%)
CMYK	cmyk(78.5%, 58.5%, 0%, 49%)
CIE-LAB	lab(25.25, 19.35, -45.66)
CIE-LCH	lch(25.25, 49.59, 292.96°)
OKLab	oklab(36.27% -0.0099 -0.1317)
OKLCH	oklch(36.27% 0.132 265.7)
XYZ	xyz(5.8259, 4.4963, 21.6756)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3682 #82681C

analogous

#1C6982 #1C3682 #351C82

triadic

#1C3682 #821C36 #36821C

tetradic

#1C3682 #821C69 #82681C #1C8235

square

#1C3682 #821C69 #82681C #1C8235

split-complementary

#1C3682 #82351C #69821C

monochromatic

#060C1D #112150 #1C3682 #274BB4 #4268D6

Accessibility & contrast

On white

11.06

#1C3682 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1C3682 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3682

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3682	#FFFFFF	#000000	##FFFFFF
##1C3682	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004185

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1c3682;
/* rgb */ color: rgb(28, 54, 130);
/* oklch */ color: oklch(36.3% 0.132 265.7);

Tailwind

colors: {
  custom: {
    50: '#696ca7',
    500: '#1c3682',
    950: '#000000',
  },
}

SCSS

$custom: #1c3682;
$custom-light: #696ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3682",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 130
  },
  "hsl": {
    "h": 224.706,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.36271,
    "c": 0.13211,
    "h": 265.7
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#1C3682

secondary

#B59944

accent

#BD40E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1C3682

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

Preview Lab → · Contrast checker → · Palette generator →