#1A3F89#1A3F89

#1A3F89 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.131 H 262.2°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#1A3F89
RGB	rgb(26, 63, 137)
HSL	hsl(220, 68%, 32%)
HSV	hsv(220, 81%, 54%)
CMYK	cmyk(81%, 54%, 0%, 46.3%)
CIE-LAB	lab(28.33, 15.66, -45.03)
CIE-LCH	lch(28.33, 47.67, 289.17°)
OKLab	oklab(38.75% -0.0178 -0.1297)
OKLCH	oklch(38.75% 0.131 262.2)
XYZ	xyz(6.7172, 5.5800, 24.3851)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3F89 #89641A

analogous

#1A7789 #1A3F89 #2D1A89

triadic

#1A3F89 #891A3F #3F891A

tetradic

#1A3F89 #891A77 #89641A #1A892D

square

#1A3F89 #891A77 #89641A #1A892D

split-complementary

#1A3F89 #892D1A #77891A

monochromatic

#061022 #102756 #1A3F89 #2457BC #4275DB

Accessibility & contrast

On white

9.92

#1A3F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1A3F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3F89

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3F89	#FFFFFF	#000000	##FFFFFF
##1A3F89	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09488C

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#00515D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a3f89;
/* rgb */ color: rgb(26, 63, 137);
/* oklch */ color: oklch(38.8% 0.131 262.2);

Tailwind

colors: {
  custom: {
    50: '#6a73ac',
    500: '#1a3f89',
    950: '#000000',
  },
}

SCSS

$custom: #1a3f89;
$custom-light: #6a73ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3f89",
  "rgb": {
    "r": 26,
    "g": 63,
    "b": 137
  },
  "hsl": {
    "h": 220,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38751,
    "c": 0.13096,
    "h": 262.2
  },
  "luminance": 0.05581
}

Semantic roles & 50–950 ramp

primary

#1A3F89

secondary

#BC9443

accent

#B13DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1A3F89

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

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