#1C36A9#1C36A9

#1C36A9 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.0% C 0.185 H 266.8°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#1C36A9
RGB	rgb(28, 54, 169)
HSL	hsl(229, 72%, 39%)
HSV	hsv(229, 83%, 66%)
CMYK	cmyk(83.4%, 68%, 0%, 33.7%)
CIE-LAB	lab(28.77, 34.56, -63.83)
CIE-LCH	lch(28.77, 72.58, 298.43°)
OKLab	oklab(39.96% -0.0102 -0.1849)
OKLCH	oklch(39.96% 0.185 266.8)
XYZ	xyz(8.9570, 5.7487, 38.1660)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C36A9 #A98F1C

analogous

#1C7CA9 #1C36A9 #481CA9

triadic

#1C36A9 #A91C36 #36A91C

tetradic

#1C36A9 #A91C7C #A98F1C #1CA948

square

#1C36A9 #A91C7C #A98F1C #1CA948

split-complementary

#1C36A9 #A9481C #7CA91C

monochromatic

#0B1440 #132574 #1C36A9 #2748DB #5B75E4

Accessibility & contrast

On white

9.77

#1C36A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1C36A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C36A9

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C36A9	#FFFFFF	#000000	##FFFFFF
##1C36A9	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAD

Deuteranopia (green-blind)

#003DA7

Tritanopia (blue-blind)

#00566B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1c36a9;
/* rgb */ color: rgb(28, 54, 169);
/* oklch */ color: oklch(40.0% 0.185 266.8);

Tailwind

colors: {
  custom: {
    50: '#736dc4',
    500: '#1c36a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c36a9;
$custom-light: #736dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c36a9",
  "rgb": {
    "r": 28,
    "g": 54,
    "b": 169
  },
  "hsl": {
    "h": 228.936,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3996,
    "c": 0.18523,
    "h": 266.8
  },
  "luminance": 0.0575
}

Semantic roles & 50–950 ramp

primary

#1C36A9

secondary

#C8B359

accent

#CD39EE

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1C36A9

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

Preview Lab → · Contrast checker → · Palette generator →