#1747B4#1747B4

#1747B4 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.0% C 0.181 H 263.1°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#1747B4
RGB	rgb(23, 71, 180)
HSL	hsl(222, 77%, 40%)
HSV	hsv(222, 87%, 71%)
CMYK	cmyk(87.2%, 60.6%, 0%, 29.4%)
CIE-LAB	lab(33.95, 27.20, -61.91)
CIE-LCH	lch(33.95, 67.62, 293.72°)
OKLab	oklab(44.05% -0.0217 -0.1792)
OKLCH	oklch(44.05% 0.181 263.1)
XYZ	xyz(10.8419, 7.9825, 44.1405)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1747B4 #B48417

analogous

#1796B4 #1747B4 #3517B4

triadic

#1747B4 #B41747 #47B417

tetradic

#1747B4 #B41796 #B48417 #17B435

square

#1747B4 #B41796 #B48417 #17B435

split-complementary

#1747B4 #B43517 #96B417

monochromatic

#091C47 #10327E #1747B4 #255FE3 #5B87EA

Accessibility & contrast

On white

8.09

#1747B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1747B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1747B4

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1747B4	#FFFFFF	#000000	##FFFFFF
##1747B4	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1747b4;
/* rgb */ color: rgb(23, 71, 180);
/* oklch */ color: oklch(44.0% 0.181 263.1);

Tailwind

colors: {
  custom: {
    50: '#7479cb',
    500: '#1747b4',
    950: '#000000',
  },
}

SCSS

$custom: #1747b4;
$custom-light: #7479cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1747b4",
  "rgb": {
    "r": 23,
    "g": 71,
    "b": 180
  },
  "hsl": {
    "h": 221.656,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4405,
    "c": 0.18052,
    "h": 263.1
  },
  "luminance": 0.07984
}

Semantic roles & 50–950 ramp

primary

#1747B4

secondary

#CEAA59

accent

#B934F4

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1747B4

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

Preview Lab → · Contrast checker → · Palette generator →