#1C47A6#1C47A6

#1C47A6 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.0% C 0.161 H 263.0°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1C47A6
RGB	rgb(28, 71, 166)
HSL	hsl(221, 71%, 38%)
HSV	hsv(221, 83%, 65%)
CMYK	cmyk(83.1%, 57.2%, 0%, 34.9%)
CIE-LAB	lab(32.93, 22.05, -55.22)
CIE-LCH	lch(32.93, 59.45, 291.77°)
OKLab	oklab(42.97% -0.0195 -0.1595)
OKLCH	oklch(42.97% 0.161 263)
XYZ	xyz(9.6126, 7.5054, 37.0110)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C47A6 #A67B1C

analogous

#1C8CA6 #1C47A6 #361CA6

triadic

#1C47A6 #A61C47 #47A61C

tetradic

#1C47A6 #A61C8C #A67B1C #1CA636

square

#1C47A6 #A61C8C #A67B1C #1CA636

split-complementary

#1C47A6 #A6361C #8CA61C

monochromatic

#0A1A3D #133172 #1C47A6 #255DDA #5984E3

Accessibility & contrast

On white

8.40

#1C47A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1C47A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C47A6

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C47A6	#FFFFFF	#000000	##FFFFFF
##1C47A6	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A9

Deuteranopia (green-blind)

#0047A4

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c47a6;
/* rgb */ color: rgb(28, 71, 166);
/* oklch */ color: oklch(43.0% 0.161 263.0);

Tailwind

colors: {
  custom: {
    50: '#7179c1',
    500: '#1c47a6',
    950: '#000000',
  },
}

SCSS

$custom: #1c47a6;
$custom-light: #7179c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c47a6",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 166
  },
  "hsl": {
    "h": 221.304,
    "s": 71.134,
    "l": 38.039
  },
  "oklch": {
    "l": 0.42968,
    "c": 0.16071,
    "h": 263
  },
  "luminance": 0.07507
}

Semantic roles & 50–950 ramp

primary

#1C47A6

secondary

#C7A457

accent

#B63AEE

background

#F7F7FC

surface

#EDEDF8

border

#C8C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C47A6

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

Preview Lab → · Contrast checker → · Palette generator →