#1B46B4#1B46B4

#1B46B4 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.0% C 0.181 H 264.0°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B46B4
RGB	rgb(27, 70, 180)
HSL	hsl(223, 74%, 41%)
HSV	hsv(223, 85%, 71%)
CMYK	cmyk(85%, 61.1%, 0%, 29.4%)
CIE-LAB	lab(33.79, 28.15, -62.16)
CIE-LCH	lch(33.79, 68.23, 294.36°)
OKLab	oklab(43.96% -0.0189 -0.1799)
OKLCH	oklch(43.96% 0.181 264)
XYZ	xyz(10.8774, 7.9073, 44.1241)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B46B4 #B4891B

analogous

#1B92B4 #1B46B4 #3C1BB4

triadic

#1B46B4 #B41B46 #46B41B

tetradic

#1B46B4 #B41B92 #B4891B #1BB43C

square

#1B46B4 #B41B92 #B4891B #1BB43C

split-complementary

#1B46B4 #B43C1B #92B41B

monochromatic

#0B1D4A #13317F #1B46B4 #2D5FDF #6287E7

Accessibility & contrast

On white

8.13

#1B46B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1B46B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B46B4

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B46B4	#FFFFFF	#000000	##FFFFFF
##1B46B4	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b46b4;
/* rgb */ color: rgb(27, 70, 180);
/* oklch */ color: oklch(44.0% 0.181 264.0);

Tailwind

colors: {
  custom: {
    50: '#7579cb',
    500: '#1b46b4',
    950: '#000000',
  },
}

SCSS

$custom: #1b46b4;
$custom-light: #7579cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b46b4",
  "rgb": {
    "r": 27,
    "g": 70,
    "b": 180
  },
  "hsl": {
    "h": 223.137,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43963,
    "c": 0.18091,
    "h": 264
  },
  "luminance": 0.07909
}

Semantic roles & 50–950 ramp

primary

#1B46B4

secondary

#CCAD5F

accent

#BC37F1

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1B46B4

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

Preview Lab → · Contrast checker → · Palette generator →