#1C4299#1C4299

#1C4299 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.8% C 0.149 H 263.4°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#1C4299
RGB	rgb(28, 66, 153)
HSL	hsl(222, 69%, 35%)
HSV	hsv(222, 82%, 60%)
CMYK	cmyk(81.7%, 56.9%, 0%, 40%)
CIE-LAB	lab(30.50, 20.27, -51.32)
CIE-LCH	lch(30.50, 55.17, 291.55°)
OKLab	oklab(40.81% -0.0171 -0.1481)
OKLCH	oklch(40.81% 0.149 263.4)
XYZ	xyz(8.1748, 6.4422, 30.9434)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4299 #99731C

analogous

#1C8099 #1C4299 #341C99

triadic

#1C4299 #991C42 #42991C

tetradic

#1C4299 #991C80 #99731C #1C9934

square

#1C4299 #991C80 #99731C #1C9934

split-complementary

#1C4299 #99341C #80991C

monochromatic

#091532 #132C65 #1C4299 #2558CD #507CDF

Accessibility & contrast

On white

9.18

#1C4299 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1C4299 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4299

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4299	#FFFFFF	#000000	##FFFFFF
##1C4299	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#005867

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4299;
/* rgb */ color: rgb(28, 66, 153);
/* oklch */ color: oklch(40.8% 0.149 263.4);

Tailwind

colors: {
  custom: {
    50: '#6e75b8',
    500: '#1c4299',
    950: '#000000',
  },
}

SCSS

$custom: #1c4299;
$custom-light: #6e75b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4299",
  "rgb": {
    "r": 28,
    "g": 66,
    "b": 153
  },
  "hsl": {
    "h": 221.76,
    "s": 69.061,
    "l": 35.49
  },
  "oklch": {
    "l": 0.40811,
    "c": 0.14913,
    "h": 263.4
  },
  "luminance": 0.06443
}

Semantic roles & 50–950 ramp

primary

#1C4299

secondary

#C29F4F

accent

#B63CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4299

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

Preview Lab → · Contrast checker → · Palette generator →