#1840A0#1840A0

#1840A0 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.162 H 263.6°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#1840A0
RGB	rgb(24, 64, 160)
HSL	hsl(222, 74%, 36%)
HSV	hsv(222, 85%, 63%)
CMYK	cmyk(85%, 60%, 0%, 37.3%)
CIE-LAB	lab(30.40, 24.08, -55.74)
CIE-LCH	lch(30.40, 60.72, 293.36°)
OKLab	oklab(40.87% -0.018 -0.1612)
OKLCH	oklch(40.87% 0.162 263.6)
XYZ	xyz(8.5530, 6.3980, 34.0350)
Luminance	0.0640 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1840A0 #A07818

analogous

#1884A0 #1840A0 #3418A0

triadic

#1840A0 #A01840 #40A018

tetradic

#1840A0 #A01884 #A07818 #18A034

square

#1840A0 #A01884 #A07818 #18A034

split-complementary

#1840A0 #A03418 #84A018

monochromatic

#081536 #102B6B #1840A0 #2055D5 #4E7AE4

Accessibility & contrast

On white

9.21

#1840A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1840A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1840A0

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1840A0	#FFFFFF	#000000	##FFFFFF
##1840A0	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00429E

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1840a0;
/* rgb */ color: rgb(24, 64, 160);
/* oklch */ color: oklch(40.9% 0.162 263.6);

Tailwind

colors: {
  custom: {
    50: '#6f74bd',
    500: '#1840a0',
    950: '#000000',
  },
}

SCSS

$custom: #1840a0;
$custom-light: #6f74bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1840a0",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 160
  },
  "hsl": {
    "h": 222.353,
    "s": 73.913,
    "l": 36.078
  },
  "oklch": {
    "l": 0.40874,
    "c": 0.16225,
    "h": 263.6
  },
  "luminance": 0.06399
}

Semantic roles & 50–950 ramp

primary

#1840A0

secondary

#C6A34D

accent

#BA37F1

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1840A0

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

Preview Lab → · Contrast checker → · Palette generator →