#1C3CA1#1C3CA1

#1C3CA1 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.168 H 265.6°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#1C3CA1
RGB	rgb(28, 60, 161)
HSL	hsl(226, 70%, 37%)
HSV	hsv(226, 83%, 63%)
CMYK	cmyk(82.6%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(29.54, 27.52, -57.74)
CIE-LCH	lch(29.54, 63.96, 295.49°)
OKLab	oklab(40.3% -0.013 -0.1671)
OKLCH	oklch(40.3% 0.168 265.6)
XYZ	xyz(8.5255, 6.0508, 34.4299)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3CA1 #A1811C

analogous

#1C7FA1 #1C3CA1 #3F1CA1

triadic

#1C3CA1 #A11C3C #3CA11C

tetradic

#1C3CA1 #A11C7F #A1811C #1CA13F

square

#1C3CA1 #A11C7F #A1811C #1CA13F

split-complementary

#1C3CA1 #A13F1C #7FA11C

monochromatic

#0A1539 #13296D #1C3CA1 #254FD5 #5677E2

Accessibility & contrast

On white

9.50

#1C3CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1C3CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3CA1

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3CA1	#FFFFFF	#000000	##FFFFFF
##1C3CA1	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA4

Deuteranopia (green-blind)

#00409F

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1c3ca1;
/* rgb */ color: rgb(28, 60, 161);
/* oklch */ color: oklch(40.3% 0.168 265.6);

Tailwind

colors: {
  custom: {
    50: '#7171be',
    500: '#1c3ca1',
    950: '#000000',
  },
}

SCSS

$custom: #1c3ca1;
$custom-light: #7171be;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3ca1",
  "rgb": {
    "r": 28,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 225.564,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.403,
    "c": 0.16759,
    "h": 265.6
  },
  "luminance": 0.06052
}

Semantic roles & 50–950 ramp

primary

#1C3CA1

secondary

#C5AA54

accent

#C23BED

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C3CA1

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

Preview Lab → · Contrast checker → · Palette generator →