#1C44B3#1C44B3

#1C44B3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.5% C 0.182 H 264.6°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#1C44B3
RGB	rgb(28, 68, 179)
HSL	hsl(224, 73%, 41%)
HSV	hsv(224, 84%, 70%)
CMYK	cmyk(84.4%, 62%, 0%, 29.8%)
CIE-LAB	lab(33.21, 29.16, -62.51)
CIE-LCH	lch(33.21, 68.98, 295.01°)
OKLab	oklab(43.51% -0.0172 -0.181)
OKLCH	oklch(43.51% 0.182 264.6)
XYZ	xyz(10.6798, 7.6345, 43.5498)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C44B3 #B38B1C

analogous

#1C8FB3 #1C44B3 #3F1CB3

triadic

#1C44B3 #B31C44 #44B31C

tetradic

#1C44B3 #B31C8F #B38B1C #1CB33F

square

#1C44B3 #B31C8F #B38B1C #1CB33F

split-complementary

#1C44B3 #B33F1C #8FB31C

monochromatic

#0B1C49 #14307E #1C44B3 #2E5DDE #6386E7

Accessibility & contrast

On white

8.31

#1C44B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1C44B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C44B3

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C44B3	#FFFFFF	#000000	##FFFFFF
##1C44B3	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#0047B1

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c44b3;
/* rgb */ color: rgb(28, 68, 179);
/* oklch */ color: oklch(43.5% 0.182 264.6);

Tailwind

colors: {
  custom: {
    50: '#7577cb',
    500: '#1c44b3',
    950: '#000000',
  },
}

SCSS

$custom: #1c44b3;
$custom-light: #7577cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c44b3",
  "rgb": {
    "r": 28,
    "g": 68,
    "b": 179
  },
  "hsl": {
    "h": 224.106,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43514,
    "c": 0.18179,
    "h": 264.6
  },
  "luminance": 0.07636
}

Semantic roles & 50–950 ramp

primary

#1C44B3

secondary

#CBAF5F

accent

#BF38F0

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1C44B3

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

Preview Lab → · Contrast checker → · Palette generator →