#1C339E#1C339E

#1C339E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.174 H 267.3°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C339E
RGB	rgb(28, 51, 158)
HSL	hsl(229, 70%, 36%)
HSV	hsv(229, 82%, 62%)
CMYK	cmyk(82.3%, 67.7%, 0%, 38%)
CIE-LAB	lab(26.97, 32.37, -60.14)
CIE-LCH	lch(26.97, 68.30, 298.29°)
OKLab	oklab(38.32% -0.0082 -0.1742)
OKLCH	oklch(38.32% 0.174 267.3)
XYZ	xyz(7.8321, 5.0822, 32.9093)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C339E #9E871C

analogous

#1C749E #1C339E #461C9E

triadic

#1C339E #9E1C33 #339E1C

tetradic

#1C339E #9E1C74 #9E871C #1C9E46

square

#1C339E #9E1C74 #9E871C #1C9E46

split-complementary

#1C339E #9E461C #749E1C

monochromatic

#0A1136 #13226A #1C339E #2544D2 #546DE1

Accessibility & contrast

On white

10.41

#1C339E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1C339E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C339E

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C339E	#FFFFFF	#000000	##FFFFFF
##1C339E	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A1

Deuteranopia (green-blind)

#003A9C

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1c339e;
/* rgb */ color: rgb(28, 51, 158);
/* oklch */ color: oklch(38.3% 0.174 267.3);

Tailwind

colors: {
  custom: {
    50: '#716abc',
    500: '#1c339e',
    950: '#000000',
  },
}

SCSS

$custom: #1c339e;
$custom-light: #716abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c339e",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 158
  },
  "hsl": {
    "h": 229.385,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3832,
    "c": 0.17438,
    "h": 267.3
  },
  "luminance": 0.05083
}

Semantic roles & 50–950 ramp

primary

#1C339E

secondary

#C4B052

accent

#CD3BED

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1C339E

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

Preview Lab → · Contrast checker → · Palette generator →