#1C1C8B#1C1C8B

#1C1C8B is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.174 H 271.3°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#1C1C8B
RGB	rgb(28, 28, 139)
HSL	hsl(240, 66%, 33%)
HSV	hsv(240, 80%, 55%)
CMYK	cmyk(79.9%, 79.9%, 0%, 45.5%)
CIE-LAB	lab(19.81, 39.68, -60.24)
CIE-LCH	lch(19.81, 72.13, 303.37°)
OKLab	oklab(32.57% 0.0039 -0.1744)
OKLCH	oklch(32.57% 0.174 271.3)
XYZ	xyz(5.5528, 2.9408, 24.6961)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1C8B #8B8B1C

analogous

#1C538B #1C1C8B #531C8B

triadic

#1C1C8B #8B1C1C #1C8B1C

tetradic

#1C1C8B #8B1C53 #8B8B1C #1C8B53

square

#1C1C8B #8B1C53 #8B8B1C #1C8B53

split-complementary

#1C1C8B #8B531C #538B1C

monochromatic

#070725 #121258 #1C1C8B #2626BE #4747DA

Accessibility & contrast

On white

13.22

#1C1C8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1C1C8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1C8B

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1C8B	#FFFFFF	#000000	##FFFFFF
##1C1C8B	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358E

Deuteranopia (green-blind)

#002A89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1c1c8b;
/* rgb */ color: rgb(28, 28, 139);
/* oklch */ color: oklch(32.6% 0.174 271.3);

Tailwind

colors: {
  custom: {
    50: '#6e5aae',
    500: '#1c1c8b',
    950: '#000000',
  },
}

SCSS

$custom: #1c1c8b;
$custom-light: #6e5aae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1c8b",
  "rgb": {
    "r": 28,
    "g": 28,
    "b": 139
  },
  "hsl": {
    "h": 240,
    "s": 66.467,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32574,
    "c": 0.17444,
    "h": 271.3
  },
  "luminance": 0.02941
}

Semantic roles & 50–950 ramp

primary

#1C1C8B

secondary

#BCBC47

accent

#E93EE9

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #1C1C8B

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

Preview Lab → · Contrast checker → · Palette generator →