#1C3FA0#1C3FA0

#1C3FA0 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.163 H 264.8°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#1C3FA0
RGB	rgb(28, 63, 160)
HSL	hsl(224, 70%, 37%)
HSV	hsv(224, 83%, 63%)
CMYK	cmyk(82.5%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(30.25, 25.10, -55.97)
CIE-LCH	lch(30.25, 61.34, 294.16°)
OKLab	oklab(40.8% -0.0148 -0.1619)
OKLCH	oklch(40.8% 0.163 264.8)
XYZ	xyz(8.5993, 6.3389, 34.0212)
Luminance	0.0634 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3FA0 #A07D1C

analogous

#1C81A0 #1C3FA0 #3B1CA0

triadic

#1C3FA0 #A01C3F #3FA01C

tetradic

#1C3FA0 #A01C81 #A07D1C #1CA03B

square

#1C3FA0 #A01C81 #A07D1C #1CA03B

split-complementary

#1C3FA0 #A03B1C #81A01C

monochromatic

#0A1638 #132A6C #1C3FA0 #2554D4 #557AE1

Accessibility & contrast

On white

9.26

#1C3FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1C3FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3FA0

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3FA0	#FFFFFF	#000000	##FFFFFF
##1C3FA0	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00419E

Tritanopia (blue-blind)

#005869

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1c3fa0;
/* rgb */ color: rgb(28, 63, 160);
/* oklch */ color: oklch(40.8% 0.163 264.8);

Tailwind

colors: {
  custom: {
    50: '#7073bd',
    500: '#1c3fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1c3fa0;
$custom-light: #7073bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3fa0",
  "rgb": {
    "r": 28,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 224.091,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40803,
    "c": 0.16253,
    "h": 264.8
  },
  "luminance": 0.0634
}

Semantic roles & 50–950 ramp

primary

#1C3FA0

secondary

#C4A653

accent

#BE3BED

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1C3FA0

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

Preview Lab → · Contrast checker → · Palette generator →