#1A3281#1A3281

#1A3281 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.137 H 266.3°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#1A3281
RGB	rgb(26, 50, 129)
HSL	hsl(226, 66%, 30%)
HSV	hsv(226, 80%, 51%)
CMYK	cmyk(79.8%, 61.2%, 0%, 49.4%)
CIE-LAB	lab(23.95, 21.52, -47.15)
CIE-LCH	lch(23.95, 51.83, 294.53°)
OKLab	oklab(35.25% -0.0087 -0.1362)
OKLCH	oklch(35.25% 0.137 266.3)
XYZ	xyz(5.5277, 4.0852, 21.2618)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3281 #81691A

analogous

#1A6681 #1A3281 #351A81

triadic

#1A3281 #811A32 #32811A

tetradic

#1A3281 #811A66 #81691A #1A8135

square

#1A3281 #811A66 #81691A #1A8135

split-complementary

#1A3281 #81351A #66811A

monochromatic

#050B1B #101E4E #1A3281 #2446B4 #3D61D8

Accessibility & contrast

On white

11.56

#1A3281 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1A3281 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3281

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3281	#FFFFFF	#000000	##FFFFFF
##1A3281	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E84

Deuteranopia (green-blind)

#00347F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a3281;
/* rgb */ color: rgb(26, 50, 129);
/* oklch */ color: oklch(35.2% 0.137 266.3);

Tailwind

colors: {
  custom: {
    50: '#6869a6',
    500: '#1a3281',
    950: '#000000',
  },
}

SCSS

$custom: #1a3281;
$custom-light: #6869a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3281",
  "rgb": {
    "r": 26,
    "g": 50,
    "b": 129
  },
  "hsl": {
    "h": 226.019,
    "s": 66.452,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35248,
    "c": 0.1365,
    "h": 266.3
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#1A3281

secondary

#B59A42

accent

#C23EE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A3281

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

Preview Lab → · Contrast checker → · Palette generator →