#1749B3#1749B3

#1749B3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.4% C 0.177 H 262.6°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#1749B3
RGB	rgb(23, 73, 179)
HSL	hsl(221, 77%, 40%)
HSV	hsv(221, 87%, 70%)
CMYK	cmyk(87.2%, 59.2%, 0%, 29.8%)
CIE-LAB	lab(34.40, 25.47, -60.58)
CIE-LCH	lch(34.40, 65.71, 292.80°)
OKLab	oklab(44.36% -0.0228 -0.1753)
OKLCH	oklch(44.36% 0.177 262.6)
XYZ	xyz(10.8696, 8.2005, 43.6491)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1749B3 #B38117

analogous

#1797B3 #1749B3 #3317B3

triadic

#1749B3 #B31749 #49B317

tetradic

#1749B3 #B31797 #B38117 #17B333

square

#1749B3 #B31797 #B38117 #17B333

split-complementary

#1749B3 #B33317 #97B317

monochromatic

#091D47 #10337D #1749B3 #2461E3 #5B88EA

Accessibility & contrast

On white

7.95

#1749B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1749B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1749B3

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1749B3	#FFFFFF	#000000	##FFFFFF
##1749B3	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1749b3;
/* rgb */ color: rgb(23, 73, 179);
/* oklch */ color: oklch(44.4% 0.177 262.6);

Tailwind

colors: {
  custom: {
    50: '#737bcb',
    500: '#1749b3',
    950: '#000000',
  },
}

SCSS

$custom: #1749b3;
$custom-light: #737bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1749b3",
  "rgb": {
    "r": 23,
    "g": 73,
    "b": 179
  },
  "hsl": {
    "h": 220.769,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44362,
    "c": 0.17676,
    "h": 262.6
  },
  "luminance": 0.08202
}

Semantic roles & 50–950 ramp

primary

#1749B3

secondary

#CDA858

accent

#B634F4

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1749B3

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

Preview Lab → · Contrast checker → · Palette generator →