#1843B4#1843B4

#1843B4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.3% C 0.185 H 264.1°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#1843B4
RGB	rgb(24, 67, 180)
HSL	hsl(223, 76%, 40%)
HSV	hsv(223, 87%, 71%)
CMYK	cmyk(86.7%, 62.8%, 0%, 29.4%)
CIE-LAB	lab(32.92, 29.94, -63.58)
CIE-LCH	lch(32.92, 70.27, 295.21°)
OKLab	oklab(43.3% -0.0191 -0.1841)
OKLCH	oklch(43.3% 0.185 264.1)
XYZ	xyz(10.6191, 7.5024, 44.0596)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1843B4 #B48918

analogous

#1891B4 #1843B4 #3B18B4

triadic

#1843B4 #B41843 #43B418

tetradic

#1843B4 #B41891 #B48918 #18B43B

square

#1843B4 #B41891 #B48918 #18B43B

split-complementary

#1843B4 #B43B18 #91B418

monochromatic

#0A1B48 #112F7E #1843B4 #275BE2 #5D84E9

Accessibility & contrast

On white

8.40

#1843B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1843B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1843B4

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1843B4	#FFFFFF	#000000	##FFFFFF
##1843B4	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B8

Deuteranopia (green-blind)

#0046B2

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1843b4;
/* rgb */ color: rgb(24, 67, 180);
/* oklch */ color: oklch(43.3% 0.185 264.1);

Tailwind

colors: {
  custom: {
    50: '#7476cb',
    500: '#1843b4',
    950: '#000000',
  },
}

SCSS

$custom: #1843b4;
$custom-light: #7476cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1843b4",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 180
  },
  "hsl": {
    "h": 223.462,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.43296,
    "c": 0.18514,
    "h": 264.1
  },
  "luminance": 0.07504
}

Semantic roles & 50–950 ramp

primary

#1843B4

secondary

#CDAE5B

accent

#BF35F3

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1843B4

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

Preview Lab → · Contrast checker → · Palette generator →