#1D3682#1D3682

#1D3682 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.3% C 0.132 H 266.1°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D3682
RGB	rgb(29, 54, 130)
HSL	hsl(225, 64%, 31%)
HSV	hsv(225, 78%, 51%)
CMYK	cmyk(77.7%, 58.5%, 0%, 49%)
CIE-LAB	lab(25.29, 19.47, -45.59)
CIE-LCH	lch(25.29, 49.57, 293.13°)
OKLab	oklab(36.32% -0.009 -0.1315)
OKLCH	oklch(36.32% 0.132 266.1)
XYZ	xyz(5.8537, 4.5106, 21.6769)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3682 #82691D

analogous

#1D6882 #1D3682 #361D82

triadic

#1D3682 #821D36 #36821D

tetradic

#1D3682 #821D68 #82691D #1D8236

square

#1D3682 #821D68 #82691D #1D8236

split-complementary

#1D3682 #82361D #68821D

monochromatic

#070C1E #122150 #1D3682 #284BB4 #4468D5

Accessibility & contrast

On white

11.04

#1D3682 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1D3682 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3682

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3682	#FFFFFF	#000000	##FFFFFF
##1D3682	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004185

Deuteranopia (green-blind)

#003781

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d3682;
/* rgb */ color: rgb(29, 54, 130);
/* oklch */ color: oklch(36.3% 0.132 266.1);

Tailwind

colors: {
  custom: {
    50: '#696ca7',
    500: '#1d3682',
    950: '#000000',
  },
}

SCSS

$custom: #1d3682;
$custom-light: #696ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3682",
  "rgb": {
    "r": 29,
    "g": 54,
    "b": 130
  },
  "hsl": {
    "h": 225.149,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.36316,
    "c": 0.13182,
    "h": 266.1
  },
  "luminance": 0.04511
}

Semantic roles & 50–950 ramp

primary

#1D3682

secondary

#B59A46

accent

#BE41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D3682

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

Preview Lab → · Contrast checker → · Palette generator →