#1C359E#1C359E

#1C359E is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.172 H 266.9°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#1C359E
RGB	rgb(28, 53, 158)
HSL	hsl(228, 70%, 36%)
HSV	hsv(228, 82%, 62%)
CMYK	cmyk(82.3%, 66.5%, 0%, 38%)
CIE-LAB	lab(27.47, 31.05, -59.32)
CIE-LCH	lch(27.47, 66.96, 297.63°)
OKLab	oklab(38.68% -0.0092 -0.1718)
OKLCH	oklch(38.68% 0.172 266.9)
XYZ	xyz(7.9214, 5.2608, 32.9391)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C359E #9E851C

analogous

#1C769E #1C359E #441C9E

triadic

#1C359E #9E1C35 #359E1C

tetradic

#1C359E #9E1C76 #9E851C #1C9E44

square

#1C359E #9E1C76 #9E851C #1C9E44

split-complementary

#1C359E #9E441C #769E1C

monochromatic

#0A1236 #13246A #1C359E #2546D2 #546FE1

Accessibility & contrast

On white

10.23

#1C359E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1C359E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C359E

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C359E	#FFFFFF	#000000	##FFFFFF
##1C359E	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	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: #1c359e;
/* rgb */ color: rgb(28, 53, 158);
/* oklch */ color: oklch(38.7% 0.172 266.9);

Tailwind

colors: {
  custom: {
    50: '#716cbc',
    500: '#1c359e',
    950: '#000000',
  },
}

SCSS

$custom: #1c359e;
$custom-light: #716cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c359e",
  "rgb": {
    "r": 28,
    "g": 53,
    "b": 158
  },
  "hsl": {
    "h": 228.462,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38684,
    "c": 0.17203,
    "h": 266.9
  },
  "luminance": 0.05262
}

Semantic roles & 50–950 ramp

primary

#1C359E

secondary

#C4AE52

accent

#CB3BED

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1C359E

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

Preview Lab → · Contrast checker → · Palette generator →