#1A359E#1A359E

#1A359E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.173 H 266.4°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#1A359E
RGB	rgb(26, 53, 158)
HSL	hsl(228, 72%, 36%)
HSV	hsv(228, 84%, 62%)
CMYK	cmyk(83.5%, 66.5%, 0%, 38%)
CIE-LAB	lab(27.39, 30.89, -59.45)
CIE-LCH	lch(27.39, 66.99, 297.46°)
OKLab	oklab(38.61% -0.0107 -0.1722)
OKLCH	oklch(38.61% 0.173 266.4)
XYZ	xyz(7.8685, 5.2335, 32.9366)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A359E #9E831A

analogous

#1A779E #1A359E #411A9E

triadic

#1A359E #9E1A35 #359E1A

tetradic

#1A359E #9E1A77 #9E831A #1A9E41

square

#1A359E #9E1A77 #9E831A #1A9E41

split-complementary

#1A359E #9E411A #779E1A

monochromatic

#091235 #112369 #1A359E #2347D3 #506EE2

Accessibility & contrast

On white

10.26

#1A359E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1A359E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A359E

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A359E	#FFFFFF	#000000	##FFFFFF
##1A359E	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A1

Deuteranopia (green-blind)

#003B9C

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a359e;
/* rgb */ color: rgb(26, 53, 158);
/* oklch */ color: oklch(38.6% 0.173 266.4);

Tailwind

colors: {
  custom: {
    50: '#706cbc',
    500: '#1a359e',
    950: '#000000',
  },
}

SCSS

$custom: #1a359e;
$custom-light: #706cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1a359e",
  "rgb": {
    "r": 26,
    "g": 53,
    "b": 158
  },
  "hsl": {
    "h": 227.727,
    "s": 71.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.38608,
    "c": 0.17252,
    "h": 266.4
  },
  "luminance": 0.05234
}

Semantic roles & 50–950 ramp

primary

#1A359E

secondary

#C5AD4F

accent

#C939EE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1A359E

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

Preview Lab → · Contrast checker → · Palette generator →