#1A3FA7#1A3FA7

#1A3FA7 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.172 H 264.7°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#1A3FA7
RGB	rgb(26, 63, 167)
HSL	hsl(224, 73%, 38%)
HSV	hsv(224, 84%, 65%)
CMYK	cmyk(84.4%, 62.3%, 0%, 34.5%)
CIE-LAB	lab(30.79, 27.68, -59.31)
CIE-LCH	lch(30.79, 65.45, 295.02°)
OKLab	oklab(41.38% -0.016 -0.1717)
OKLCH	oklch(41.38% 0.172 264.7)
XYZ	xyz(9.1761, 6.5635, 37.3350)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3FA7 #A7821A

analogous

#1A86A7 #1A3FA7 #3B1AA7

triadic

#1A3FA7 #A71A3F #3FA71A

tetradic

#1A3FA7 #A71A86 #A7821A #1AA73B

square

#1A3FA7 #A71A86 #A7821A #1AA73B

split-complementary

#1A3FA7 #A73B1A #86A71A

monochromatic

#0A173D #122B72 #1A3FA7 #2253DC #577CE5

Accessibility & contrast

On white

9.08

#1A3FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1A3FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3FA7

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3FA7	#FFFFFF	#000000	##FFFFFF
##1A3FA7	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAA

Deuteranopia (green-blind)

#0042A5

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1a3fa7;
/* rgb */ color: rgb(26, 63, 167);
/* oklch */ color: oklch(41.4% 0.172 264.7);

Tailwind

colors: {
  custom: {
    50: '#7273c2',
    500: '#1a3fa7',
    950: '#000000',
  },
}

SCSS

$custom: #1a3fa7;
$custom-light: #7273c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3fa7",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 167
  },
  "hsl": {
    "h": 224.255,
    "s": 73.057,
    "l": 37.843
  },
  "oklch": {
    "l": 0.41375,
    "c": 0.17242,
    "h": 264.7
  },
  "luminance": 0.06565
}

Semantic roles & 50–950 ramp

primary

#1A3FA7

secondary

#C8AA55

accent

#C038F0

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1A3FA7

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

Preview Lab → · Contrast checker → · Palette generator →