#1A3F82#1A3F82

#1A3F82 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.2% C 0.121 H 261.1°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F82
RGB	rgb(26, 63, 130)
HSL	hsl(219, 67%, 31%)
HSV	hsv(219, 80%, 51%)
CMYK	cmyk(80%, 51.5%, 0%, 49%)
CIE-LAB	lab(27.81, 12.79, -41.52)
CIE-LCH	lch(27.81, 43.45, 287.12°)
OKLab	oklab(38.19% -0.0187 -0.1194)
OKLCH	oklch(38.19% 0.121 261.1)
XYZ	xyz(6.2313, 5.3856, 21.8259)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F82 #825D1A

analogous

#1A7382 #1A3F82 #291A82

triadic

#1A3F82 #821A3F #3F821A

tetradic

#1A3F82 #821A73 #825D1A #1A8229

square

#1A3F82 #821A73 #825D1A #1A8229

split-complementary

#1A3F82 #82291A #73821A

monochromatic

#060E1C #10264F #1A3F82 #2458B5 #3E75D8

Accessibility & contrast

On white

10.11

#1A3F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#1A3F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F82

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F82	#FFFFFF	#000000	##FFFFFF
##1A3F82	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164784

Deuteranopia (green-blind)

#003D81

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3f82;
/* rgb */ color: rgb(26, 63, 130);
/* oklch */ color: oklch(38.2% 0.121 261.1);

Tailwind

colors: {
  custom: {
    50: '#6873a7',
    500: '#1a3f82',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f82;
$custom-light: #6873a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f82",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 130
  },
  "hsl": {
    "h": 218.654,
    "s": 66.667,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38188,
    "c": 0.12088,
    "h": 261.1
  },
  "luminance": 0.05386
}

Semantic roles & 50–950 ramp

primary

#1A3F82

secondary

#B68D42

accent

#AD3EEA

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A3F82

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

Preview Lab → · Contrast checker → · Palette generator →