#1A3BA1#1A3BA1

#1A3BA1 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.169 H 265.3°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1A3BA1
RGB	rgb(26, 59, 161)
HSL	hsl(225, 72%, 37%)
HSV	hsv(225, 84%, 63%)
CMYK	cmyk(83.9%, 63.4%, 0%, 36.9%)
CIE-LAB	lab(29.21, 28.03, -58.28)
CIE-LCH	lch(29.21, 64.67, 295.69°)
OKLab	oklab(40.03% -0.0139 -0.1687)
OKLCH	oklch(40.03% 0.169 265.3)
XYZ	xyz(8.4207, 5.9197, 34.4101)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3BA1 #A1801A

analogous

#1A7FA1 #1A3BA1 #3C1AA1

triadic

#1A3BA1 #A11A3B #3BA11A

tetradic

#1A3BA1 #A11A7F #A1801A #1AA13C

square

#1A3BA1 #A11A7F #A1801A #1AA13C

split-complementary

#1A3BA1 #A13C1A #7FA11A

monochromatic

#091438 #11286C #1A3BA1 #234ED6 #5276E3

Accessibility & contrast

On white

9.61

#1A3BA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1A3BA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3BA1

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3BA1	#FFFFFF	#000000	##FFFFFF
##1A3BA1	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA4

Deuteranopia (green-blind)

#003F9F

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3ba1;
/* rgb */ color: rgb(26, 59, 161);
/* oklch */ color: oklch(40.0% 0.169 265.3);

Tailwind

colors: {
  custom: {
    50: '#7070be',
    500: '#1a3ba1',
    950: '#000000',
  },
}

SCSS

$custom: #1a3ba1;
$custom-light: #7070be;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3ba1",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 161
  },
  "hsl": {
    "h": 225.333,
    "s": 72.193,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40035,
    "c": 0.1693,
    "h": 265.3
  },
  "luminance": 0.05921
}

Semantic roles & 50–950 ramp

primary

#1A3BA1

secondary

#C6A951

accent

#C239EF

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3BA1

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

Preview Lab → · Contrast checker → · Palette generator →