#1C44B4#1C44B4

#1C44B4 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.183 H 264.6°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C44B4
RGB	rgb(28, 68, 180)
HSL	hsl(224, 73%, 41%)
HSV	hsv(224, 84%, 71%)
CMYK	cmyk(84.4%, 62.2%, 0%, 29.4%)
CIE-LAB	lab(33.30, 29.55, -62.96)
CIE-LCH	lch(33.30, 69.55, 295.14°)
OKLab	oklab(43.61% -0.0172 -0.1823)
OKLCH	oklch(43.61% 0.183 264.6)
XYZ	xyz(10.7813, 7.6751, 44.0844)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C44B4 #B48C1C

analogous

#1C90B4 #1C44B4 #401CB4

triadic

#1C44B4 #B41C44 #44B41C

tetradic

#1C44B4 #B41C90 #B48C1C #1CB440

square

#1C44B4 #B41C90 #B48C1C #1CB440

split-complementary

#1C44B4 #B4401C #90B41C

monochromatic

#0C1C4A #14307F #1C44B4 #2F5DDF #6486E7

Accessibility & contrast

On white

8.28

#1C44B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1C44B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C44B4

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C44B4	#FFFFFF	#000000	##FFFFFF
##1C44B4	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c44b4;
/* rgb */ color: rgb(28, 68, 180);
/* oklch */ color: oklch(43.6% 0.183 264.6);

Tailwind

colors: {
  custom: {
    50: '#7577cb',
    500: '#1c44b4',
    950: '#000000',
  },
}

SCSS

$custom: #1c44b4;
$custom-light: #7577cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c44b4",
  "rgb": {
    "r": 28,
    "g": 68,
    "b": 180
  },
  "hsl": {
    "h": 224.211,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.43605,
    "c": 0.1831,
    "h": 264.6
  },
  "luminance": 0.07676
}

Semantic roles & 50–950 ramp

primary

#1C44B4

secondary

#CCAF60

accent

#BF38F0

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1C44B4

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

Preview Lab → · Contrast checker → · Palette generator →