#1A43B4#1A43B4

#1A43B4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.4% C 0.185 H 264.4°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#1A43B4
RGB	rgb(26, 67, 180)
HSL	hsl(224, 75%, 40%)
HSV	hsv(224, 86%, 71%)
CMYK	cmyk(85.6%, 62.8%, 0%, 29.4%)
CIE-LAB	lab(32.98, 30.07, -63.48)
CIE-LCH	lch(32.98, 70.25, 295.34°)
OKLab	oklab(43.35% -0.0179 -0.1839)
OKLCH	oklch(43.35% 0.185 264.4)
XYZ	xyz(10.6684, 7.5279, 44.0619)
Luminance	0.0753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A43B4 #B48B1A

analogous

#1A90B4 #1A43B4 #3E1AB4

triadic

#1A43B4 #B41A43 #43B41A

tetradic

#1A43B4 #B41A90 #B48B1A #1AB43E

square

#1A43B4 #B41A90 #B48B1A #1AB43E

split-complementary

#1A43B4 #B43E1A #90B41A

monochromatic

#0B1B49 #122F7F #1A43B4 #2B5BE0 #6084E8

Accessibility & contrast

On white

8.38

#1A43B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1A43B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A43B4

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A43B4	#FFFFFF	#000000	##FFFFFF
##1A43B4	1.00	8.38	2.51	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#006175

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1a43b4;
/* rgb */ color: rgb(26, 67, 180);
/* oklch */ color: oklch(43.4% 0.185 264.4);

Tailwind

colors: {
  custom: {
    50: '#7576cb',
    500: '#1a43b4',
    950: '#000000',
  },
}

SCSS

$custom: #1a43b4;
$custom-light: #7576cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1a43b4",
  "rgb": {
    "r": 26,
    "g": 67,
    "b": 180
  },
  "hsl": {
    "h": 224.026,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.43353,
    "c": 0.18473,
    "h": 264.4
  },
  "luminance": 0.07529
}

Semantic roles & 50–950 ramp

primary

#1A43B4

secondary

#CCAF5D

accent

#C036F1

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1A43B4

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

Preview Lab → · Contrast checker → · Palette generator →