#1A3F86#1A3F86

#1A3F86 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.5% C 0.127 H 261.8°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F86
RGB	rgb(26, 63, 134)
HSL	hsl(219, 68%, 31%)
HSV	hsv(219, 81%, 53%)
CMYK	cmyk(80.6%, 53%, 0%, 47.5%)
CIE-LAB	lab(28.10, 14.43, -43.53)
CIE-LCH	lch(28.10, 45.86, 288.34°)
OKLab	oklab(38.51% -0.0181 -0.1253)
OKLCH	oklch(38.51% 0.127 261.8)
XYZ	xyz(6.5050, 5.4951, 23.2675)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F86 #86611A

analogous

#1A7586 #1A3F86 #2B1A86

triadic

#1A3F86 #861A3F #3F861A

tetradic

#1A3F86 #861A75 #86611A #1A862B

square

#1A3F86 #861A75 #86611A #1A862B

split-complementary

#1A3F86 #862B1A #75861A

monochromatic

#060F1F #102753 #1A3F86 #2457B9 #4075DA

Accessibility & contrast

On white

10.00

#1A3F86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1A3F86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F86

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F86	#FFFFFF	#000000	##FFFFFF
##1A3F86	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104889

Deuteranopia (green-blind)

#003E85

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1a3f86;
/* rgb */ color: rgb(26, 63, 134);
/* oklch */ color: oklch(38.5% 0.127 261.8);

Tailwind

colors: {
  custom: {
    50: '#6973aa',
    500: '#1a3f86',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f86;
$custom-light: #6973aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f86",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 134
  },
  "hsl": {
    "h": 219.444,
    "s": 67.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38508,
    "c": 0.12666,
    "h": 261.8
  },
  "luminance": 0.05496
}

Semantic roles & 50–950 ramp

primary

#1A3F86

secondary

#B99142

accent

#AF3DEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1A3F86

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

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