#1A3380#1A3380

#1A3380 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.134 H 266.0°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#1A3380
RGB	rgb(26, 51, 128)
HSL	hsl(225, 66%, 30%)
HSV	hsv(225, 80%, 50%)
CMYK	cmyk(79.7%, 60.2%, 0%, 49.8%)
CIE-LAB	lab(24.15, 20.41, -46.20)
CIE-LCH	lch(24.15, 50.51, 293.83°)
OKLab	oklab(35.37% -0.0094 -0.1334)
OKLCH	oklch(35.37% 0.134 266)
XYZ	xyz(5.5047, 4.1452, 20.9279)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3380 #80671A

analogous

#1A6680 #1A3380 #341A80

triadic

#1A3380 #801A33 #33801A

tetradic

#1A3380 #801A66 #80671A #1A8034

square

#1A3380 #801A66 #80671A #1A8034

split-complementary

#1A3380 #80341A #66801A

monochromatic

#050A1A #101F4D #1A3380 #2447B3 #3D63D8

Accessibility & contrast

On white

11.48

#1A3380 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1A3380 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3380

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3380	#FFFFFF	#000000	##FFFFFF
##1A3380	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E83

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004654

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a3380;
/* rgb */ color: rgb(26, 51, 128);
/* oklch */ color: oklch(35.4% 0.134 266.0);

Tailwind

colors: {
  custom: {
    50: '#686aa6',
    500: '#1a3380',
    950: '#000000',
  },
}

SCSS

$custom: #1a3380;
$custom-light: #686aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3380",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 128
  },
  "hsl": {
    "h": 225.294,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35367,
    "c": 0.13376,
    "h": 266
  },
  "luminance": 0.04146
}

Semantic roles & 50–950 ramp

primary

#1A3380

secondary

#B49842

accent

#BF3FE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A3380

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

Preview Lab → · Contrast checker → · Palette generator →