#1C47A7#1C47A7

#1C47A7 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.1% C 0.162 H 263.1°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#1C47A7
RGB	rgb(28, 71, 167)
HSL	hsl(221, 71%, 38%)
HSV	hsv(221, 83%, 65%)
CMYK	cmyk(83.2%, 57.5%, 0%, 34.5%)
CIE-LAB	lab(33.01, 22.44, -55.68)
CIE-LCH	lch(33.01, 60.04, 291.95°)
OKLab	oklab(43.05% -0.0194 -0.1609)
OKLCH	oklch(43.05% 0.162 263.1)
XYZ	xyz(9.7047, 7.5422, 37.4960)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C47A7 #A77C1C

analogous

#1C8CA7 #1C47A7 #361CA7

triadic

#1C47A7 #A71C47 #47A71C

tetradic

#1C47A7 #A71C8C #A77C1C #1CA736

square

#1C47A7 #A71C8C #A77C1C #1CA736

split-complementary

#1C47A7 #A7361C #8CA71C

monochromatic

#0A1A3E #133173 #1C47A7 #265EDB #5A85E3

Accessibility & contrast

On white

8.37

#1C47A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1C47A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C47A7

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C47A7	#FFFFFF	#000000	##FFFFFF
##1C47A7	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054AA

Deuteranopia (green-blind)

#0048A5

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1c47a7;
/* rgb */ color: rgb(28, 71, 167);
/* oklch */ color: oklch(43.1% 0.162 263.1);

Tailwind

colors: {
  custom: {
    50: '#7179c2',
    500: '#1c47a7',
    950: '#000000',
  },
}

SCSS

$custom: #1c47a7;
$custom-light: #7179c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c47a7",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 167
  },
  "hsl": {
    "h": 221.439,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.43053,
    "c": 0.16206,
    "h": 263.1
  },
  "luminance": 0.07543
}

Semantic roles & 50–950 ramp

primary

#1C47A7

secondary

#C7A558

accent

#B63AEE

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C47A7

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

Preview Lab → · Contrast checker → · Palette generator →