#1C45A8#1C45A8

#1C45A8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.7% C 0.166 H 263.7°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C45A8
RGB	rgb(28, 69, 168)
HSL	hsl(222, 71%, 38%)
HSV	hsv(222, 83%, 66%)
CMYK	cmyk(83.3%, 58.9%, 0%, 34.1%)
CIE-LAB	lab(32.54, 24.19, -57.04)
CIE-LCH	lch(32.54, 61.96, 292.98°)
OKLab	oklab(42.73% -0.0181 -0.1649)
OKLCH	oklch(42.73% 0.166 263.7)
XYZ	xyz(9.6724, 7.3291, 37.9431)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C45A8 #A87F1C

analogous

#1C8BA8 #1C45A8 #391CA8

triadic

#1C45A8 #A81C45 #45A81C

tetradic

#1C45A8 #A81C8B #A87F1C #1CA839

square

#1C45A8 #A81C8B #A87F1C #1CA839

split-complementary

#1C45A8 #A8391C #8BA81C

monochromatic

#0B1A3F #132F74 #1C45A8 #265BDB #5B83E4

Accessibility & contrast

On white

8.52

#1C45A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1C45A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C45A8

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C45A8	#FFFFFF	#000000	##FFFFFF
##1C45A8	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c45a8;
/* rgb */ color: rgb(28, 69, 168);
/* oklch */ color: oklch(42.7% 0.166 263.7);

Tailwind

colors: {
  custom: {
    50: '#7278c3',
    500: '#1c45a8',
    950: '#000000',
  },
}

SCSS

$custom: #1c45a8;
$custom-light: #7278c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c45a8",
  "rgb": {
    "r": 28,
    "g": 69,
    "b": 168
  },
  "hsl": {
    "h": 222.429,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.42728,
    "c": 0.16591,
    "h": 263.7
  },
  "luminance": 0.0733
}

Semantic roles & 50–950 ramp

primary

#1C45A8

secondary

#C7A758

accent

#B93AEE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090813

muted

#7B7B82

Preview Lab

Preview with #1C45A8

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

Preview Lab → · Contrast checker → · Palette generator →