#1D3786#1D3786

#1D3786 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.136 H 266.0°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#1D3786
RGB	rgb(29, 55, 134)
HSL	hsl(225, 64%, 32%)
HSV	hsv(225, 78%, 53%)
CMYK	cmyk(78.4%, 59%, 0%, 47.5%)
CIE-LAB	lab(25.90, 20.38, -47.09)
CIE-LCH	lch(25.90, 51.31, 293.40°)
OKLab	oklab(36.88% -0.0096 -0.1359)
OKLCH	oklch(36.88% 0.136 266)
XYZ	xyz(6.1744, 4.7141, 23.1341)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3786 #866C1D

analogous

#1D6C86 #1D3786 #381D86

triadic

#1D3786 #861D37 #37861D

tetradic

#1D3786 #861D6C #866C1D #1D8638

square

#1D3786 #861D6C #866C1D #1D8638

split-complementary

#1D3786 #86381D #6C861D

monochromatic

#070E21 #122254 #1D3786 #284CB8 #466AD7

Accessibility & contrast

On white

10.81

#1D3786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1D3786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3786

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3786	#FFFFFF	#000000	##FFFFFF
##1D3786	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004289

Deuteranopia (green-blind)

#003984

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3786;
/* rgb */ color: rgb(29, 55, 134);
/* oklch */ color: oklch(36.9% 0.136 266.0);

Tailwind

colors: {
  custom: {
    50: '#6a6daa',
    500: '#1d3786',
    950: '#000000',
  },
}

SCSS

$custom: #1d3786;
$custom-light: #6a6daa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3786",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 134
  },
  "hsl": {
    "h": 225.143,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36878,
    "c": 0.13626,
    "h": 266
  },
  "luminance": 0.04715
}

Semantic roles & 50–950 ramp

primary

#1D3786

secondary

#B99C46

accent

#BE40E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3786

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

Preview Lab → · Contrast checker → · Palette generator →