#1D1D73#1D1D73

#1D1D73 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.0% C 0.142 H 273.8°. Best body text is #FFFFFF at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D73
RGB	rgb(29, 29, 115)
HSL	hsl(240, 60%, 28%)
HSV	hsv(240, 75%, 45%)
CMYK	cmyk(74.8%, 74.8%, 0%, 54.9%)
CIE-LAB	lab(17.35, 30.72, -49.04)
CIE-LCH	lch(17.35, 57.87, 302.06°)
OKLab	oklab(30.05% 0.0093 -0.1418)
OKLCH	oklch(30.05% 0.142 273.8)
XYZ	xyz(4.0395, 2.3773, 16.4623)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D73 #73731D

analogous

#1D4873 #1D1D73 #481D73

triadic

#1D1D73 #731D1D #1D731D

tetradic

#1D1D73 #731D48 #73731D #1D7348

square

#1D1D73 #731D48 #73731D #1D7348

split-complementary

#1D1D73 #73481D #48731D

monochromatic

#060618 #111142 #1D1D73 #2929A4 #3C3CCE

Accessibility & contrast

On white

14.23

#1D1D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1D1D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D73

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D73	#FFFFFF	#000000	##FFFFFF
##1D1D73	1.00	14.23	1.48	14.23
#FFFFFF	14.23	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F76

Deuteranopia (green-blind)

#002771

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1d1d73;
/* rgb */ color: rgb(29, 29, 115);
/* oklch */ color: oklch(30.0% 0.142 273.8);

Tailwind

colors: {
  custom: {
    50: '#685a9c',
    500: '#1d1d73',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d73;
$custom-light: #685a9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d73",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 115
  },
  "hsl": {
    "h": 240,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30049,
    "c": 0.14212,
    "h": 273.8
  },
  "luminance": 0.02378
}

Semantic roles & 50–950 ramp

primary

#1D1D73

secondary

#A7A745

accent

#E345E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D1D73

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

Preview Lab → · Contrast checker → · Palette generator →