#1747B3#1747B3

#1747B3 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.0% C 0.179 H 263.0°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#1747B3
RGB	rgb(23, 71, 179)
HSL	hsl(222, 77%, 40%)
HSV	hsv(222, 87%, 70%)
CMYK	cmyk(87.2%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(33.86, 26.81, -61.45)
CIE-LCH	lch(33.86, 67.05, 293.57°)
OKLab	oklab(43.96% -0.0217 -0.1779)
OKLCH	oklch(43.96% 0.179 263)
XYZ	xyz(10.7404, 7.9419, 43.6060)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1747B3 #B38317

analogous

#1795B3 #1747B3 #3517B3

triadic

#1747B3 #B31747 #47B317

tetradic

#1747B3 #B31795 #B38317 #17B335

square

#1747B3 #B31795 #B38317 #17B335

split-complementary

#1747B3 #B33517 #95B317

monochromatic

#091C47 #10317D #1747B3 #245FE3 #5B87EA

Accessibility & contrast

On white

8.11

#1747B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1747B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1747B3

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1747B3	#FFFFFF	#000000	##FFFFFF
##1747B3	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1747b3;
/* rgb */ color: rgb(23, 71, 179);
/* oklch */ color: oklch(44.0% 0.179 263.0);

Tailwind

colors: {
  custom: {
    50: '#7379cb',
    500: '#1747b3',
    950: '#000000',
  },
}

SCSS

$custom: #1747b3;
$custom-light: #7379cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1747b3",
  "rgb": {
    "r": 23,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 221.538,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.43961,
    "c": 0.1792,
    "h": 263
  },
  "luminance": 0.07943
}

Semantic roles & 50–950 ramp

primary

#1747B3

secondary

#CDA958

accent

#B934F4

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1747B3

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

Preview Lab → · Contrast checker → · Palette generator →