#1D2873#1D2873

#1D2873 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.0% C 0.129 H 270.8°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#1D2873
RGB	rgb(29, 40, 115)
HSL	hsl(232, 60%, 28%)
HSV	hsv(232, 75%, 45%)
CMYK	cmyk(74.8%, 65.2%, 0%, 54.9%)
CIE-LAB	lab(20.11, 23.33, -44.52)
CIE-LCH	lch(20.11, 50.26, 297.66°)
OKLab	oklab(32.05% 0.0017 -0.1286)
OKLCH	oklch(32.05% 0.129 270.8)
XYZ	xyz(4.3589, 3.0162, 16.5688)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2873 #73681D

analogous

#1D5373 #1D2873 #3D1D73

triadic

#1D2873 #731D28 #28731D

tetradic

#1D2873 #731D53 #73681D #1D733D

square

#1D2873 #731D53 #73681D #1D733D

split-complementary

#1D2873 #733D1D #53731D

monochromatic

#060818 #111742 #1D2873 #2939A4 #3C4FCE

Accessibility & contrast

On white

13.10

#1D2873 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1D2873 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2873

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2873	#FFFFFF	#000000	##FFFFFF
##1D2873	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003575

Deuteranopia (green-blind)

#002D72

Tritanopia (blue-blind)

#003B49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d2873;
/* rgb */ color: rgb(29, 40, 115);
/* oklch */ color: oklch(32.0% 0.129 270.8);

Tailwind

colors: {
  custom: {
    50: '#67619c',
    500: '#1d2873',
    950: '#000000',
  },
}

SCSS

$custom: #1d2873;
$custom-light: #67619c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2873",
  "rgb": {
    "r": 29,
    "g": 40,
    "b": 115
  },
  "hsl": {
    "h": 232.326,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3205,
    "c": 0.12857,
    "h": 270.8
  },
  "luminance": 0.03017
}

Semantic roles & 50–950 ramp

primary

#1D2873

secondary

#A79B45

accent

#CF45E3

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1D2873

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

Preview Lab → · Contrast checker → · Palette generator →