#1C199E#1C199E

#1C199E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.5% C 0.200 H 270.1°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#1C199E
RGB	rgb(28, 25, 158)
HSL	hsl(241, 73%, 36%)
HSV	hsv(241, 84%, 62%)
CMYK	cmyk(82.3%, 84.2%, 0%, 38%)
CIE-LAB	lab(21.62, 47.41, -68.98)
CIE-LCH	lch(21.62, 83.70, 304.50°)
OKLab	oklab(34.51% 0.0005 -0.1997)
OKLCH	oklch(34.51% 0.2 270.1)
XYZ	xyz(6.9960, 3.4099, 32.6306)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C199E #9B9E19

analogous

#19589E #1C199E #5E199E

triadic

#1C199E #9E1C19 #199E1C

tetradic

#1C199E #9E1958 #9B9E19 #199E5E

square

#1C199E #9E1958 #9B9E19 #199E5E

split-complementary

#1C199E #9E5E19 #589E19

monochromatic

#090834 #131169 #1C199E #2521D3 #524EE3

Accessibility & contrast

On white

12.48

#1C199E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1C199E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C199E

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C199E	#FFFFFF	#000000	##FFFFFF
##1C199E	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002D9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1c199e;
/* rgb */ color: rgb(28, 25, 158);
/* oklch */ color: oklch(34.5% 0.200 270.1);

Tailwind

colors: {
  custom: {
    50: '#735abc',
    500: '#1c199e',
    950: '#000000',
  },
}

SCSS

$custom: #1c199e;
$custom-light: #735abc;
$custom-dark: #000000;

JSON

{
  "hex": "#1c199e",
  "rgb": {
    "r": 28,
    "g": 25,
    "b": 158
  },
  "hsl": {
    "h": 241.353,
    "s": 72.678,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34508,
    "c": 0.19967,
    "h": 270.1
  },
  "luminance": 0.03411
}

Semantic roles & 50–950 ramp

primary

#1C199E

secondary

#C3C54E

accent

#EF38EB

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C199E

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

Preview Lab → · Contrast checker → · Palette generator →