#1C47A8#1C47A8

#1C47A8 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.163 H 263.2°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#1C47A8
RGB	rgb(28, 71, 168)
HSL	hsl(222, 71%, 38%)
HSV	hsv(222, 83%, 66%)
CMYK	cmyk(83.3%, 57.7%, 0%, 34.1%)
CIE-LAB	lab(33.09, 22.84, -56.15)
CIE-LCH	lch(33.09, 60.62, 292.13°)
OKLab	oklab(43.14% -0.0194 -0.1623)
OKLCH	oklch(43.14% 0.163 263.2)
XYZ	xyz(9.7975, 7.5793, 37.9848)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C47A8 #A87D1C

analogous

#1C8DA8 #1C47A8 #371CA8

triadic

#1C47A8 #A81C47 #47A81C

tetradic

#1C47A8 #A81C8D #A87D1C #1CA837

square

#1C47A8 #A81C8D #A87D1C #1CA837

split-complementary

#1C47A8 #A8371C #8DA81C

monochromatic

#0B1B3F #133174 #1C47A8 #265EDB #5B85E4

Accessibility & contrast

On white

8.35

#1C47A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#1C47A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C47A8

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C47A8	#FFFFFF	#000000	##FFFFFF
##1C47A8	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AB

Deuteranopia (green-blind)

#0048A6

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c47a8;
/* rgb */ color: rgb(28, 71, 168);
/* oklch */ color: oklch(43.1% 0.163 263.2);

Tailwind

colors: {
  custom: {
    50: '#7279c3',
    500: '#1c47a8',
    950: '#000000',
  },
}

SCSS

$custom: #1c47a8;
$custom-light: #7279c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c47a8",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 168
  },
  "hsl": {
    "h": 221.571,
    "s": 71.429,
    "l": 38.431
  },
  "oklch": {
    "l": 0.43139,
    "c": 0.16342,
    "h": 263.2
  },
  "luminance": 0.07581
}

Semantic roles & 50–950 ramp

primary

#1C47A8

secondary

#C7A558

accent

#B73AEE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C47A8

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

Preview Lab → · Contrast checker → · Palette generator →