#1C1B97#1C1B97

#1C1B97 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.9% C 0.190 H 270.5°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1C1B97
RGB	rgb(28, 27, 151)
HSL	hsl(240, 70%, 35%)
HSV	hsv(240, 82%, 59%)
CMYK	cmyk(81.5%, 82.1%, 0%, 40.8%)
CIE-LAB	lab(21.07, 44.20, -65.59)
CIE-LCH	lch(21.07, 79.09, 303.97°)
OKLab	oklab(33.88% 0.0016 -0.1899)
OKLCH	oklch(33.88% 0.19 270.5)
XYZ	xyz(6.4548, 3.2644, 29.5620)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1B97 #96971B

analogous

#1B5897 #1C1B97 #5A1B97

triadic

#1C1B97 #971C1B #1B971C

tetradic

#1C1B97 #971B58 #96971B #1B975A

square

#1C1B97 #971B58 #96971B #1B975A

split-complementary

#1C1B97 #975A1B #58971B

monochromatic

#09082F #121263 #1C1B97 #2624CB #4E4DDF

Accessibility & contrast

On white

12.70

#1C1B97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1C1B97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1B97

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1B97	#FFFFFF	#000000	##FFFFFF
##1C1B97	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00399A

Deuteranopia (green-blind)

#002C95

Tritanopia (blue-blind)

#00425A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c1b97;
/* rgb */ color: rgb(28, 27, 151);
/* oklch */ color: oklch(33.9% 0.190 270.5);

Tailwind

colors: {
  custom: {
    50: '#715bb7',
    500: '#1c1b97',
    950: '#000000',
  },
}

SCSS

$custom: #1c1b97;
$custom-light: #715bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1b97",
  "rgb": {
    "r": 28,
    "g": 27,
    "b": 151
  },
  "hsl": {
    "h": 240.484,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.33881,
    "c": 0.18989,
    "h": 270.5
  },
  "luminance": 0.03265
}

Semantic roles & 50–950 ramp

primary

#1C1B97

secondary

#C1C14C

accent

#EC3BEB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1B97

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

Preview Lab → · Contrast checker → · Palette generator →