#1A3A89#1A3A89

#1A3A89 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.137 H 264.1°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A89
RGB	rgb(26, 58, 137)
HSL	hsl(223, 68%, 32%)
HSV	hsv(223, 81%, 54%)
CMYK	cmyk(81%, 57.7%, 0%, 46.3%)
CIE-LAB	lab(26.88, 19.15, -47.38)
CIE-LCH	lch(26.88, 51.10, 292.00°)
OKLab	oklab(37.66% -0.014 -0.1368)
OKLCH	oklch(37.66% 0.137 264.1)
XYZ	xyz(6.4528, 5.0511, 24.2969)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A89 #89691A

analogous

#1A7289 #1A3A89 #321A89

triadic

#1A3A89 #891A3A #3A891A

tetradic

#1A3A89 #891A72 #89691A #1A8932

square

#1A3A89 #891A72 #89691A #1A8932

split-complementary

#1A3A89 #89321A #72891A

monochromatic

#060E22 #102456 #1A3A89 #2450BC #426EDB

Accessibility & contrast

On white

10.45

#1A3A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1A3A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A89

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A89	#FFFFFF	#000000	##FFFFFF
##1A3A89	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458C

Deuteranopia (green-blind)

#003B87

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1a3a89;
/* rgb */ color: rgb(26, 58, 137);
/* oklch */ color: oklch(37.7% 0.137 264.1);

Tailwind

colors: {
  custom: {
    50: '#6a6fac',
    500: '#1a3a89',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a89;
$custom-light: #6a6fac;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a89",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 137
  },
  "hsl": {
    "h": 222.703,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37656,
    "c": 0.13748,
    "h": 264.1
  },
  "luminance": 0.05052
}

Semantic roles & 50–950 ramp

primary

#1A3A89

secondary

#BC9943

accent

#B93DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3A89

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

Preview Lab → · Contrast checker → · Palette generator →