#1C158C#1C158C

#1C158C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.182 H 271.8°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#1C158C
RGB	rgb(28, 21, 140)
HSL	hsl(244, 74%, 32%)
HSV	hsv(244, 85%, 55%)
CMYK	cmyk(80%, 85%, 0%, 45.1%)
CIE-LAB	lab(18.70, 43.59, -62.70)
CIE-LCH	lch(18.70, 76.37, 304.81°)
OKLab	oklab(31.84% 0.0057 -0.1814)
OKLCH	oklch(31.84% 0.182 271.8)
XYZ	xyz(5.4791, 2.6761, 25.0336)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C158C #858C15

analogous

#154A8C #1C158C #58158C

triadic

#1C158C #8C1C15 #158C1C

tetradic

#1C158C #8C154A #858C15 #158C58

square

#1C158C #8C154A #858C15 #158C58

split-complementary

#1C158C #8C5815 #4A8C15

monochromatic

#070522 #110D57 #1C158C #271DC1 #443AE1

Accessibility & contrast

On white

13.68

#1C158C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C158C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C158C

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C158C	#FFFFFF	#000000	##FFFFFF
##1C158C	1.00	13.68	1.54	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c158c;
/* rgb */ color: rgb(28, 21, 140);
/* oklch */ color: oklch(31.8% 0.182 271.8);

Tailwind

colors: {
  custom: {
    50: '#6f57af',
    500: '#1c158c',
    950: '#000000',
  },
}

SCSS

$custom: #1c158c;
$custom-light: #6f57af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c158c",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 140
  },
  "hsl": {
    "h": 243.529,
    "s": 73.913,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31838,
    "c": 0.18151,
    "h": 271.8
  },
  "luminance": 0.02677
}

Semantic roles & 50–950 ramp

primary

#1C158C

secondary

#B8C03D

accent

#F137E6

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C158C

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

Preview Lab → · Contrast checker → · Palette generator →