#1C1569#1C1569

#1C1569 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.6% C 0.138 H 276.1°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#1C1569
RGB	rgb(28, 21, 105)
HSL	hsl(245, 67%, 25%)
HSV	hsv(245, 80%, 41%)
CMYK	cmyk(73.3%, 80%, 0%, 58.8%)
CIE-LAB	lab(14.42, 31.94, -47.38)
CIE-LCH	lch(14.42, 57.14, 303.99°)
OKLab	oklab(27.61% 0.0147 -0.1369)
OKLCH	oklch(27.61% 0.138 276.1)
XYZ	xyz(3.2960, 1.8028, 13.5361)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1569 #626915

analogous

#153869 #1C1569 #461569

triadic

#1C1569 #691C15 #15691C

tetradic

#1C1569 #691538 #626915 #156946

square

#1C1569 #691538 #626915 #156946

split-complementary

#1C1569 #694615 #386915

monochromatic

#07051A #0E0B36 #1C1569 #2A1F9C #3729CF

Accessibility & contrast

On white

15.43

#1C1569 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1C1569 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1569

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1569	#FFFFFF	#000000	##FFFFFF
##1C1569	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286B

Deuteranopia (green-blind)

#002168

Tritanopia (blue-blind)

#002E3E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1c1569;
/* rgb */ color: rgb(28, 21, 105);
/* oklch */ color: oklch(27.6% 0.138 276.1);

Tailwind

colors: {
  custom: {
    50: '#665495',
    500: '#1c1569',
    950: '#000000',
  },
}

SCSS

$custom: #1c1569;
$custom-light: #665495;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1569",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 105
  },
  "hsl": {
    "h": 245,
    "s": 66.667,
    "l": 24.706
  },
  "oklch": {
    "l": 0.27611,
    "c": 0.13773,
    "h": 276.1
  },
  "luminance": 0.01803
}

Semantic roles & 50–950 ramp

primary

#1C1569

secondary

#97A03A

accent

#EA3EDB

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1C1569

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

Preview Lab → · Contrast checker → · Palette generator →