#1A3F84#1A3F84

#1A3F84 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.3% C 0.124 H 261.5°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F84
RGB	rgb(26, 63, 132)
HSL	hsl(219, 67%, 31%)
HSV	hsv(219, 80%, 52%)
CMYK	cmyk(80.3%, 52.3%, 0%, 48.2%)
CIE-LAB	lab(27.95, 13.61, -42.53)
CIE-LCH	lch(27.95, 44.66, 287.75°)
OKLab	oklab(38.35% -0.0184 -0.1224)
OKLCH	oklch(38.35% 0.124 261.5)
XYZ	xyz(6.3669, 5.4398, 22.5398)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F84 #845F1A

analogous

#1A7484 #1A3F84 #2A1A84

triadic

#1A3F84 #841A3F #3F841A

tetradic

#1A3F84 #841A74 #845F1A #1A842A

square

#1A3F84 #841A74 #845F1A #1A842A

split-complementary

#1A3F84 #842A1A #74841A

monochromatic

#060E1E #102751 #1A3F84 #2457B7 #3F75D9

Accessibility & contrast

On white

10.06

#1A3F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1A3F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F84

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F84	#FFFFFF	#000000	##FFFFFF
##1A3F84	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134786

Deuteranopia (green-blind)

#003D83

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3f84;
/* rgb */ color: rgb(26, 63, 132);
/* oklch */ color: oklch(38.3% 0.124 261.5);

Tailwind

colors: {
  custom: {
    50: '#6873a8',
    500: '#1a3f84',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f84;
$custom-light: #6873a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f84",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 132
  },
  "hsl": {
    "h": 219.057,
    "s": 67.089,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38347,
    "c": 0.12378,
    "h": 261.5
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#1A3F84

secondary

#B88F42

accent

#AE3EEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1A3F84

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

Preview Lab → · Contrast checker → · Palette generator →