#1D3083#1D3083

#1D3083 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.2% C 0.141 H 268.2°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D3083
RGB	rgb(29, 48, 131)
HSL	hsl(229, 64%, 31%)
HSV	hsv(229, 78%, 51%)
CMYK	cmyk(77.9%, 63.4%, 0%, 48.6%)
CIE-LAB	lab(23.71, 24.06, -48.79)
CIE-LCH	lch(23.71, 54.39, 296.25°)
OKLab	oklab(35.17% -0.0045 -0.141)
OKLCH	oklch(35.17% 0.141 268.2)
XYZ	xyz(5.6590, 4.0132, 21.9447)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3083 #83701D

analogous

#1D6383 #1D3083 #3D1D83

triadic

#1D3083 #831D30 #30831D

tetradic

#1D3083 #831D63 #83701D #1D833D

square

#1D3083 #831D63 #83701D #1D833D

split-complementary

#1D3083 #833D1D #63831D

monochromatic

#070B1F #121E51 #1D3083 #2842B5 #4560D6

Accessibility & contrast

On white

11.65

#1D3083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1D3083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3083

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3083	#FFFFFF	#000000	##FFFFFF
##1D3083	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003481

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d3083;
/* rgb */ color: rgb(29, 48, 131);
/* oklch */ color: oklch(35.2% 0.141 268.2);

Tailwind

colors: {
  custom: {
    50: '#6a68a8',
    500: '#1d3083',
    950: '#000000',
  },
}

SCSS

$custom: #1d3083;
$custom-light: #6a68a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3083",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 131
  },
  "hsl": {
    "h": 228.824,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.35165,
    "c": 0.14106,
    "h": 268.2
  },
  "luminance": 0.04014
}

Semantic roles & 50–950 ramp

primary

#1D3083

secondary

#B6A146

accent

#C841E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #1D3083

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

Preview Lab → · Contrast checker → · Palette generator →