#1D1D9A#1D1D9A

#1D1D9A is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.192 H 270.5°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D9A
RGB	rgb(29, 29, 154)
HSL	hsl(240, 68%, 36%)
HSV	hsv(240, 81%, 60%)
CMYK	cmyk(81.2%, 81.2%, 0%, 39.6%)
CIE-LAB	lab(21.84, 44.21, -66.15)
CIE-LCH	lch(21.84, 79.57, 303.76°)
OKLab	oklab(34.54% 0.0016 -0.1915)
OKLCH	oklch(34.54% 0.192 270.5)
XYZ	xyz(6.7768, 3.4723, 30.8786)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D9A #9A9A1D

analogous

#1D5B9A #1D1D9A #5B1D9A

triadic

#1D1D9A #9A1D1D #1D9A1D

tetradic

#1D1D9A #9A1D5B #9A9A1D #1D9A5B

square

#1D1D9A #9A1D5B #9A9A1D #1D9A5B

split-complementary

#1D1D9A #9A5B1D #5B9A1D

monochromatic

#0A0A33 #131366 #1D1D9A #2727CE #5353DF

Accessibility & contrast

On white

12.39

#1D1D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D1D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D9A

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D9A	#FFFFFF	#000000	##FFFFFF
##1D1D9A	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9D

Deuteranopia (green-blind)

#002E98

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d1d9a;
/* rgb */ color: rgb(29, 29, 154);
/* oklch */ color: oklch(34.5% 0.192 270.5);

Tailwind

colors: {
  custom: {
    50: '#725cb9',
    500: '#1d1d9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d9a;
$custom-light: #725cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d9a",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 154
  },
  "hsl": {
    "h": 240,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34538,
    "c": 0.19155,
    "h": 270.5
  },
  "luminance": 0.03473
}

Semantic roles & 50–950 ramp

primary

#1D1D9A

secondary

#C2C251

accent

#EB3DEB

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1D9A

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

Preview Lab → · Contrast checker → · Palette generator →