#1743A1#1743A1

#1743A1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.6% C 0.160 H 262.7°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#1743A1
RGB	rgb(23, 67, 161)
HSL	hsl(221, 75%, 36%)
HSV	hsv(221, 86%, 63%)
CMYK	cmyk(85.7%, 58.4%, 0%, 36.9%)
CIE-LAB	lab(31.27, 22.35, -54.91)
CIE-LCH	lch(31.27, 59.29, 292.15°)
OKLab	oklab(41.55% -0.0204 -0.1588)
OKLCH	oklch(41.55% 0.16 262.7)
XYZ	xyz(8.7912, 6.7686, 34.5544)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1743A1 #A17517

analogous

#1788A1 #1743A1 #3017A1

triadic

#1743A1 #A11743 #43A117

tetradic

#1743A1 #A11788 #A17517 #17A130

square

#1743A1 #A11788 #A17517 #17A130

split-complementary

#1743A1 #A13017 #88A117

monochromatic

#081636 #0F2D6B #1743A1 #1F59D7 #4D7EE6

Accessibility & contrast

On white

8.92

#1743A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#1743A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1743A1

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1743A1	#FFFFFF	#000000	##FFFFFF
##1743A1	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#005B6B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1743a1;
/* rgb */ color: rgb(23, 67, 161);
/* oklch */ color: oklch(41.6% 0.160 262.7);

Tailwind

colors: {
  custom: {
    50: '#6f76be',
    500: '#1743a1',
    950: '#000000',
  },
}

SCSS

$custom: #1743a1;
$custom-light: #6f76be;
$custom-dark: #000000;

JSON

{
  "hex": "#1743a1",
  "rgb": {
    "r": 23,
    "g": 67,
    "b": 161
  },
  "hsl": {
    "h": 220.87,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.41552,
    "c": 0.16007,
    "h": 262.7
  },
  "luminance": 0.0677
}

Semantic roles & 50–950 ramp

primary

#1743A1

secondary

#C7A04C

accent

#B636F2

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1743A1

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

Preview Lab → · Contrast checker → · Palette generator →