#1D3586#1D3586

#1D3586 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.5% C 0.139 H 266.7°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1D3586
RGB	rgb(29, 53, 134)
HSL	hsl(226, 64%, 32%)
HSV	hsv(226, 78%, 53%)
CMYK	cmyk(78.4%, 60.4%, 0%, 47.5%)
CIE-LAB	lab(25.35, 21.77, -48.00)
CIE-LCH	lch(25.35, 52.71, 294.39°)
OKLab	oklab(36.46% -0.0081 -0.1386)
OKLCH	oklch(36.46% 0.139 266.7)
XYZ	xyz(6.0814, 4.5280, 23.1031)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3586 #866E1D

analogous

#1D6A86 #1D3586 #3A1D86

triadic

#1D3586 #861D35 #35861D

tetradic

#1D3586 #861D6A #866E1D #1D863A

square

#1D3586 #861D6A #866E1D #1D863A

split-complementary

#1D3586 #863A1D #6A861D

monochromatic

#070D21 #122154 #1D3586 #2849B8 #4667D7

Accessibility & contrast

On white

11.02

#1D3586 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1D3586 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3586

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3586	#FFFFFF	#000000	##FFFFFF
##1D3586	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004189

Deuteranopia (green-blind)

#003784

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1d3586;
/* rgb */ color: rgb(29, 53, 134);
/* oklch */ color: oklch(36.5% 0.139 266.7);

Tailwind

colors: {
  custom: {
    50: '#6a6baa',
    500: '#1d3586',
    950: '#000000',
  },
}

SCSS

$custom: #1d3586;
$custom-light: #6a6baa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3586",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 134
  },
  "hsl": {
    "h": 226.286,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3646,
    "c": 0.13885,
    "h": 266.7
  },
  "luminance": 0.04529
}

Semantic roles & 50–950 ramp

primary

#1D3586

secondary

#B99F46

accent

#C140E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1D3586

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

Preview Lab → · Contrast checker → · Palette generator →