#1A3D9B#1A3D9B

#1A3D9B is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.159 H 264.5°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1A3D9B
RGB	rgb(26, 61, 155)
HSL	hsl(224, 71%, 35%)
HSV	hsv(224, 83%, 61%)
CMYK	cmyk(83.2%, 60.6%, 0%, 39.2%)
CIE-LAB	lab(29.22, 24.31, -54.63)
CIE-LCH	lch(29.22, 59.79, 293.98°)
OKLab	oklab(39.88% -0.0151 -0.158)
OKLCH	oklch(39.88% 0.159 264.5)
XYZ	xyz(8.0090, 5.9227, 31.7251)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3D9B #9B781A

analogous

#1A7D9B #1A3D9B #371A9B

triadic

#1A3D9B #9B1A3D #3D9B1A

tetradic

#1A3D9B #9B1A7D #9B781A #1A9B37

square

#1A3D9B #9B1A7D #9B781A #1A9B37

split-complementary

#1A3D9B #9B371A #7D9B1A

monochromatic

#081432 #112867 #1A3D9B #2352CF #4E76E1

Accessibility & contrast

On white

9.61

#1A3D9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1A3D9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3D9B

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3D9B	#FFFFFF	#000000	##FFFFFF
##1A3D9B	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)

#004B9E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1a3d9b;
/* rgb */ color: rgb(26, 61, 155);
/* oklch */ color: oklch(39.9% 0.159 264.5);

Tailwind

colors: {
  custom: {
    50: '#6e72b9',
    500: '#1a3d9b',
    950: '#000000',
  },
}

SCSS

$custom: #1a3d9b;
$custom-light: #6e72b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3d9b",
  "rgb": {
    "r": 26,
    "g": 61,
    "b": 155
  },
  "hsl": {
    "h": 223.721,
    "s": 71.271,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39878,
    "c": 0.15872,
    "h": 264.5
  },
  "luminance": 0.05924
}

Semantic roles & 50–950 ramp

primary

#1A3D9B

secondary

#C4A34D

accent

#BD3AEE

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A3D9B

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

Preview Lab → · Contrast checker → · Palette generator →