#1C47A1#1C47A1

#1C47A1 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.5% C 0.154 H 262.6°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C47A1
RGB	rgb(28, 71, 161)
HSL	hsl(221, 70%, 37%)
HSV	hsv(221, 83%, 63%)
CMYK	cmyk(82.6%, 55.9%, 0%, 36.9%)
CIE-LAB	lab(32.54, 20.05, -52.85)
CIE-LCH	lch(32.54, 56.53, 290.78°)
OKLab	oklab(42.55% -0.0199 -0.1526)
OKLCH	oklch(42.55% 0.154 262.6)
XYZ	xyz(9.1628, 7.3255, 34.6423)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C47A1 #A1761C

analogous

#1C89A1 #1C47A1 #341CA1

triadic

#1C47A1 #A11C47 #47A11C

tetradic

#1C47A1 #A11C89 #A1761C #1CA134

square

#1C47A1 #A11C89 #A1761C #1CA134

split-complementary

#1C47A1 #A1341C #89A11C

monochromatic

#0A1939 #13306D #1C47A1 #255ED5 #5683E2

Accessibility & contrast

On white

8.52

#1C47A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1C47A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C47A1

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C47A1	#FFFFFF	#000000	##FFFFFF
##1C47A1	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)

#0053A4

Deuteranopia (green-blind)

#00479F

Tritanopia (blue-blind)

#005D6D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1c47a1;
/* rgb */ color: rgb(28, 71, 161);
/* oklch */ color: oklch(42.5% 0.154 262.6);

Tailwind

colors: {
  custom: {
    50: '#7079be',
    500: '#1c47a1',
    950: '#000000',
  },
}

SCSS

$custom: #1c47a1;
$custom-light: #7079be;
$custom-dark: #000000;

JSON

{
  "hex": "#1c47a1",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 161
  },
  "hsl": {
    "h": 220.602,
    "s": 70.37,
    "l": 37.059
  },
  "oklch": {
    "l": 0.42546,
    "c": 0.15386,
    "h": 262.6
  },
  "luminance": 0.07327
}

Semantic roles & 50–950 ramp

primary

#1C47A1

secondary

#C5A054

accent

#B33BED

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1C47A1

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

Preview Lab → · Contrast checker → · Palette generator →