#1C156C#1C156C

#1C156C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.0% C 0.142 H 275.7°. Best body text is #FFFFFF at 15.29:1 contrast (WCAG AA passes).

Color values

HEX	#1C156C
RGB	rgb(28, 21, 108)
HSL	hsl(245, 67%, 25%)
HSV	hsv(245, 81%, 42%)
CMYK	cmyk(74.1%, 80.6%, 0%, 57.6%)
CIE-LAB	lab(14.77, 32.99, -48.77)
CIE-LCH	lch(14.77, 58.87, 304.08°)
OKLab	oklab(27.96% 0.014 -0.141)
OKLCH	oklch(27.96% 0.142 275.7)
XYZ	xyz(3.4529, 1.8656, 14.3626)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C156C #656C15

analogous

#15396C #1C156C #48156C

triadic

#1C156C #6C1C15 #156C1C

tetradic

#1C156C #6C1539 #656C15 #156C48

square

#1C156C #6C1539 #656C15 #156C48

split-complementary

#1C156C #6C4815 #396C15

monochromatic

#07051A #0F0B39 #1C156C #291F9F #3729D2

Accessibility & contrast

On white

15.29

#1C156C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1C156C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C156C

15.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C156C	#FFFFFF	#000000	##FFFFFF
##1C156C	1.00	15.29	1.37	15.29
#FFFFFF	15.29	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c156c;
/* rgb */ color: rgb(28, 21, 108);
/* oklch */ color: oklch(28.0% 0.142 275.7);

Tailwind

colors: {
  custom: {
    50: '#665497',
    500: '#1c156c',
    950: '#000000',
  },
}

SCSS

$custom: #1c156c;
$custom-light: #665497;
$custom-dark: #000000;

JSON

{
  "hex": "#1c156c",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 108
  },
  "hsl": {
    "h": 244.828,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.2796,
    "c": 0.14168,
    "h": 275.7
  },
  "luminance": 0.01866
}

Semantic roles & 50–950 ramp

primary

#1C156C

secondary

#9AA33A

accent

#EA3DDC

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C156C

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

Preview Lab → · Contrast checker → · Palette generator →