#1C156A#1C156A

#1C156A is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.7% C 0.139 H 276.0°. Best body text is #FFFFFF at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C156A
RGB	rgb(28, 21, 106)
HSL	hsl(245, 67%, 25%)
HSV	hsv(245, 80%, 42%)
CMYK	cmyk(73.6%, 80.2%, 0%, 58.4%)
CIE-LAB	lab(14.53, 32.29, -47.84)
CIE-LCH	lch(14.53, 57.72, 304.02°)
OKLab	oklab(27.73% 0.0145 -0.1383)
OKLCH	oklch(27.73% 0.139 276)
XYZ	xyz(3.3477, 1.8235, 13.8084)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C156A #636A15

analogous

#15396A #1C156A #46156A

triadic

#1C156A #6A1C15 #156A1C

tetradic

#1C156A #6A1539 #636A15 #156A46

square

#1C156A #6A1539 #636A15 #156A46

split-complementary

#1C156A #6A4615 #396A15

monochromatic

#07051A #0F0B37 #1C156A #291F9D #3729D0

Accessibility & contrast

On white

15.39

#1C156A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1C156A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C156A

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C156A	#FFFFFF	#000000	##FFFFFF
##1C156A	1.00	15.39	1.36	15.39
#FFFFFF	15.39	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286C

Deuteranopia (green-blind)

#002168

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1c156a;
/* rgb */ color: rgb(28, 21, 106);
/* oklch */ color: oklch(27.7% 0.139 276.0);

Tailwind

colors: {
  custom: {
    50: '#665496',
    500: '#1c156a',
    950: '#000000',
  },
}

SCSS

$custom: #1c156a;
$custom-light: #665496;
$custom-dark: #000000;

JSON

{
  "hex": "#1c156a",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 106
  },
  "hsl": {
    "h": 244.941,
    "s": 66.929,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27726,
    "c": 0.13905,
    "h": 276
  },
  "luminance": 0.01824
}

Semantic roles & 50–950 ramp

primary

#1C156A

secondary

#98A13A

accent

#EA3EDC

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1C156A

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

Preview Lab → · Contrast checker → · Palette generator →