#1D1B9D#1D1B9D

#1D1B9D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.7% C 0.197 H 270.4°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#1D1B9D
RGB	rgb(29, 27, 157)
HSL	hsl(241, 71%, 36%)
HSV	hsv(241, 83%, 62%)
CMYK	cmyk(81.5%, 82.8%, 0%, 38.4%)
CIE-LAB	lab(21.87, 46.19, -67.95)
CIE-LCH	lch(21.87, 82.17, 304.20°)
OKLab	oklab(34.66% 0.0014 -0.1967)
OKLCH	oklch(34.66% 0.197 270.4)
XYZ	xyz(6.9824, 3.4786, 32.1952)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1B9D #9B9D1B

analogous

#1B5A9D #1D1B9D #5E1B9D

triadic

#1D1B9D #9D1D1B #1B9D1D

tetradic

#1D1B9D #9D1B5A #9B9D1B #1B9D5E

square

#1D1B9D #9D1B5A #9B9D1B #1B9D5E

split-complementary

#1D1B9D #9D5E1B #5A9D1B

monochromatic

#0A0935 #131269 #1D1B9D #2724D1 #5351E1

Accessibility & contrast

On white

12.38

#1D1B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D1B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1B9D

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1B9D	#FFFFFF	#000000	##FFFFFF
##1D1B9D	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA1

Deuteranopia (green-blind)

#002E9B

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d1b9d;
/* rgb */ color: rgb(29, 27, 157);
/* oklch */ color: oklch(34.7% 0.197 270.4);

Tailwind

colors: {
  custom: {
    50: '#735bbb',
    500: '#1d1b9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d1b9d;
$custom-light: #735bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1b9d",
  "rgb": {
    "r": 29,
    "g": 27,
    "b": 157
  },
  "hsl": {
    "h": 240.923,
    "s": 70.652,
    "l": 36.078
  },
  "oklch": {
    "l": 0.3466,
    "c": 0.19672,
    "h": 270.4
  },
  "luminance": 0.03479
}

Semantic roles & 50–950 ramp

primary

#1D1B9D

secondary

#C2C450

accent

#ED3AEB

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1B9D

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

Preview Lab → · Contrast checker → · Palette generator →