#1C47AE#1C47AE

#1C47AE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.7% C 0.172 H 263.6°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#1C47AE
RGB	rgb(28, 71, 174)
HSL	hsl(222, 72%, 40%)
HSV	hsv(222, 84%, 68%)
CMYK	cmyk(83.9%, 59.2%, 0%, 31.8%)
CIE-LAB	lab(33.58, 25.21, -58.94)
CIE-LCH	lch(33.58, 64.10, 293.16°)
OKLab	oklab(43.66% -0.019 -0.1704)
OKLCH	oklch(43.66% 0.172 263.6)
XYZ	xyz(10.3694, 7.8081, 40.9968)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C47AE #AE831C

analogous

#1C90AE #1C47AE #3A1CAE

triadic

#1C47AE #AE1C47 #47AE1C

tetradic

#1C47AE #AE1C90 #AE831C #1CAE3A

square

#1C47AE #AE1C90 #AE831C #1CAE3A

split-complementary

#1C47AE #AE3A1C #90AE1C

monochromatic

#0B1C45 #143179 #1C47AE #2A5FDD #5F87E5

Accessibility & contrast

On white

8.20

#1C47AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#1C47AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C47AE

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C47AE	#FFFFFF	#000000	##FFFFFF
##1C47AE	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B1

Deuteranopia (green-blind)

#0048AC

Tritanopia (blue-blind)

#006173

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1c47ae;
/* rgb */ color: rgb(28, 71, 174);
/* oklch */ color: oklch(43.7% 0.172 263.6);

Tailwind

colors: {
  custom: {
    50: '#7379c7',
    500: '#1c47ae',
    950: '#000000',
  },
}

SCSS

$custom: #1c47ae;
$custom-light: #7379c7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c47ae",
  "rgb": {
    "r": 28,
    "g": 71,
    "b": 174
  },
  "hsl": {
    "h": 222.329,
    "s": 72.277,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43659,
    "c": 0.1715,
    "h": 263.6
  },
  "luminance": 0.07809
}

Semantic roles & 50–950 ramp

primary

#1C47AE

secondary

#CAA95C

accent

#B939EF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1C47AE

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

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