#1A3C91#1A3C91

#1A3C91 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.146 H 264.1°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1A3C91
RGB	rgb(26, 60, 145)
HSL	hsl(223, 70%, 34%)
HSV	hsv(223, 82%, 57%)
CMYK	cmyk(82.1%, 58.6%, 0%, 43.1%)
CIE-LAB	lab(28.10, 20.99, -50.33)
CIE-LCH	lch(28.10, 54.54, 292.64°)
OKLab	oklab(38.78% -0.0149 -0.1454)
OKLCH	oklch(38.78% 0.146 264.1)
XYZ	xyz(7.1509, 5.4948, 27.4663)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3C91 #916F1A

analogous

#1A7791 #1A3C91 #331A91

triadic

#1A3C91 #911A3C #3C911A

tetradic

#1A3C91 #911A77 #916F1A #1A9133

square

#1A3C91 #911A77 #916F1A #1A9133

split-complementary

#1A3C91 #91331A #77911A

monochromatic

#071129 #11275D #1A3C91 #2351C5 #4772DE

Accessibility & contrast

On white

10.00

#1A3C91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1A3C91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3C91

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3C91	#FFFFFF	#000000	##FFFFFF
##1A3C91	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004894

Deuteranopia (green-blind)

#003D8F

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3c91;
/* rgb */ color: rgb(26, 60, 145);
/* oklch */ color: oklch(38.8% 0.146 264.1);

Tailwind

colors: {
  custom: {
    50: '#6c71b2',
    500: '#1a3c91',
    950: '#000000',
  },
}

SCSS

$custom: #1a3c91;
$custom-light: #6c71b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3c91",
  "rgb": {
    "r": 26,
    "g": 60,
    "b": 145
  },
  "hsl": {
    "h": 222.857,
    "s": 69.591,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38779,
    "c": 0.14617,
    "h": 264.1
  },
  "luminance": 0.05496
}

Semantic roles & 50–950 ramp

primary

#1A3C91

secondary

#C09D47

accent

#BA3BEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1A3C91

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

Preview Lab → · Contrast checker → · Palette generator →