#1D1CB1#1D1CB1

#1D1CB1 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.2% C 0.219 H 269.2°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D1CB1
RGB	rgb(29, 28, 177)
HSL	hsl(240, 73%, 40%)
HSV	hsv(240, 84%, 69%)
CMYK	cmyk(83.6%, 84.2%, 0%, 30.6%)
CIE-LAB	lab(24.53, 51.97, -75.64)
CIE-LCH	lch(24.53, 91.78, 304.49°)
OKLab	oklab(37.22% -0.0031 -0.219)
OKLCH	oklch(37.22% 0.219 269.2)
XYZ	xyz(8.8551, 4.2650, 41.9430)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1CB1 #B0B11C

analogous

#1C65B1 #1D1CB1 #681CB1

triadic

#1D1CB1 #B11D1C #1CB11D

tetradic

#1D1CB1 #B11C65 #B0B11C #1CB168

square

#1D1CB1 #B11C65 #B0B11C #1CB168

split-complementary

#1D1CB1 #B1681C #65B11C

monochromatic

#0C0B47 #14147C #1D1CB1 #2E2CDE #6261E6

Accessibility & contrast

On white

11.33

#1D1CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1D1CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1CB1

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1CB1	#FFFFFF	#000000	##FFFFFF
##1D1CB1	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B5

Deuteranopia (green-blind)

#0032AF

Tritanopia (blue-blind)

#004D69

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d1cb1;
/* rgb */ color: rgb(29, 28, 177);
/* oklch */ color: oklch(37.2% 0.219 269.2);

Tailwind

colors: {
  custom: {
    50: '#785dca',
    500: '#1d1cb1',
    950: '#000000',
  },
}

SCSS

$custom: #1d1cb1;
$custom-light: #785dca;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1cb1",
  "rgb": {
    "r": 29,
    "g": 28,
    "b": 177
  },
  "hsl": {
    "h": 240.403,
    "s": 72.683,
    "l": 40.196
  },
  "oklch": {
    "l": 0.37217,
    "c": 0.219,
    "h": 269.2
  },
  "luminance": 0.04266
}

Semantic roles & 50–950 ramp

primary

#1D1CB1

secondary

#CACB5E

accent

#EF38EE

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #1D1CB1

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

Preview Lab → · Contrast checker → · Palette generator →