#1A3BA0#1A3BA0

#1A3BA0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.168 H 265.3°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#1A3BA0
RGB	rgb(26, 59, 160)
HSL	hsl(225, 72%, 36%)
HSV	hsv(225, 84%, 63%)
CMYK	cmyk(83.8%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(29.12, 27.64, -57.82)
CIE-LCH	lch(29.12, 64.09, 295.55°)
OKLab	oklab(39.94% -0.0139 -0.1674)
OKLCH	oklch(39.94% 0.168 265.3)
XYZ	xyz(8.3329, 5.8846, 33.9475)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3BA0 #A07F1A

analogous

#1A7EA0 #1A3BA0 #3C1AA0

triadic

#1A3BA0 #A01A3B #3BA01A

tetradic

#1A3BA0 #A01A7E #A07F1A #1AA03C

square

#1A3BA0 #A01A7E #A07F1A #1AA03C

split-complementary

#1A3BA0 #A03C1A #7EA01A

monochromatic

#091437 #11286B #1A3BA0 #234ED5 #5275E3

Accessibility & contrast

On white

9.65

#1A3BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1A3BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3BA0

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3BA0	#FFFFFF	#000000	##FFFFFF
##1A3BA0	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3ba0;
/* rgb */ color: rgb(26, 59, 160);
/* oklch */ color: oklch(39.9% 0.168 265.3);

Tailwind

colors: {
  custom: {
    50: '#7070bd',
    500: '#1a3ba0',
    950: '#000000',
  },
}

SCSS

$custom: #1a3ba0;
$custom-light: #7070bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3ba0",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 225.224,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39941,
    "c": 0.16797,
    "h": 265.3
  },
  "luminance": 0.05886
}

Semantic roles & 50–950 ramp

primary

#1A3BA0

secondary

#C5A950

accent

#C239EF

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3BA0

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

Preview Lab → · Contrast checker → · Palette generator →