#1A3B91#1A3B91

#1A3B91 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.147 H 264.5°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B91
RGB	rgb(26, 59, 145)
HSL	hsl(223, 70%, 34%)
HSV	hsv(223, 82%, 57%)
CMYK	cmyk(82.1%, 59.3%, 0%, 43.1%)
CIE-LAB	lab(27.82, 21.68, -50.79)
CIE-LCH	lch(27.82, 55.23, 293.12°)
OKLab	oklab(38.57% -0.0142 -0.1468)
OKLCH	oklch(38.57% 0.147 264.5)
XYZ	xyz(7.0990, 5.3910, 27.4490)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B91 #91701A

analogous

#1A7691 #1A3B91 #341A91

triadic

#1A3B91 #911A3B #3B911A

tetradic

#1A3B91 #911A76 #91701A #1A9134

square

#1A3B91 #911A76 #91701A #1A9134

split-complementary

#1A3B91 #91341A #76911A

monochromatic

#071129 #11265D #1A3B91 #2350C5 #4771DE

Accessibility & contrast

On white

10.10

#1A3B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1A3B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B91

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B91	#FFFFFF	#000000	##FFFFFF
##1A3B91	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004794

Deuteranopia (green-blind)

#003C8F

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3b91;
/* rgb */ color: rgb(26, 59, 145);
/* oklch */ color: oklch(38.6% 0.147 264.5);

Tailwind

colors: {
  custom: {
    50: '#6c70b2',
    500: '#1a3b91',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b91;
$custom-light: #6c70b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b91",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 145
  },
  "hsl": {
    "h": 223.361,
    "s": 69.591,
    "l": 33.529
  },
  "oklch": {
    "l": 0.3857,
    "c": 0.14745,
    "h": 264.5
  },
  "luminance": 0.05392
}

Semantic roles & 50–950 ramp

primary

#1A3B91

secondary

#C09E47

accent

#BB3BEC

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1A3B91

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

Preview Lab → · Contrast checker → · Palette generator →