#1D3186#1D3186

#1D3186 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.144 H 267.9°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#1D3186
RGB	rgb(29, 49, 134)
HSL	hsl(229, 64%, 32%)
HSV	hsv(229, 78%, 53%)
CMYK	cmyk(78.4%, 63.4%, 0%, 47.5%)
CIE-LAB	lab(24.25, 24.54, -49.79)
CIE-LCH	lch(24.25, 55.51, 296.24°)
OKLab	oklab(35.65% -0.0052 -0.1439)
OKLCH	oklch(35.65% 0.144 267.9)
XYZ	xyz(5.9066, 4.1784, 23.0449)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3186 #86721D

analogous

#1D6686 #1D3186 #3D1D86

triadic

#1D3186 #861D31 #31861D

tetradic

#1D3186 #861D66 #86721D #1D863D

square

#1D3186 #861D66 #86721D #1D863D

split-complementary

#1D3186 #863D1D #66861D

monochromatic

#070C21 #121F54 #1D3186 #2843B8 #4662D7

Accessibility & contrast

On white

11.44

#1D3186 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1D3186 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3186

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3186	#FFFFFF	#000000	##FFFFFF
##1D3186	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F89

Deuteranopia (green-blind)

#003584

Tritanopia (blue-blind)

#004756

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d3186;
/* rgb */ color: rgb(29, 49, 134);
/* oklch */ color: oklch(35.6% 0.144 267.9);

Tailwind

colors: {
  custom: {
    50: '#6b68aa',
    500: '#1d3186',
    950: '#000000',
  },
}

SCSS

$custom: #1d3186;
$custom-light: #6b68aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3186",
  "rgb": {
    "r": 29,
    "g": 49,
    "b": 134
  },
  "hsl": {
    "h": 228.571,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.35647,
    "c": 0.14401,
    "h": 267.9
  },
  "luminance": 0.04179
}

Semantic roles & 50–950 ramp

primary

#1D3186

secondary

#B9A346

accent

#C840E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1D3186

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

Preview Lab → · Contrast checker → · Palette generator →