#1D3385#1D3385

#1D3385 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.140 H 267.3°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#1D3385
RGB	rgb(29, 51, 133)
HSL	hsl(227, 64%, 32%)
HSV	hsv(227, 78%, 52%)
CMYK	cmyk(78.2%, 61.7%, 0%, 47.8%)
CIE-LAB	lab(24.71, 22.76, -48.42)
CIE-LCH	lch(24.71, 53.50, 295.18°)
OKLab	oklab(35.96% -0.0066 -0.1399)
OKLCH	oklch(35.96% 0.14 267.3)
XYZ	xyz(5.9227, 4.3217, 22.7078)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3385 #856F1D

analogous

#1D6785 #1D3385 #3B1D85

triadic

#1D3385 #851D33 #33851D

tetradic

#1D3385 #851D67 #856F1D #1D853B

square

#1D3385 #851D67 #856F1D #1D853B

split-complementary

#1D3385 #853B1D #67851D

monochromatic

#070C21 #122053 #1D3385 #2846B7 #4664D7

Accessibility & contrast

On white

11.26

#1D3385 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1D3385 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3385

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3385	#FFFFFF	#000000	##FFFFFF
##1D3385	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004088

Deuteranopia (green-blind)

#003683

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d3385;
/* rgb */ color: rgb(29, 51, 133);
/* oklch */ color: oklch(36.0% 0.140 267.3);

Tailwind

colors: {
  custom: {
    50: '#6a6aa9',
    500: '#1d3385',
    950: '#000000',
  },
}

SCSS

$custom: #1d3385;
$custom-light: #6a6aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3385",
  "rgb": {
    "r": 29,
    "g": 51,
    "b": 133
  },
  "hsl": {
    "h": 227.308,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35957,
    "c": 0.14003,
    "h": 267.3
  },
  "luminance": 0.04322
}

Semantic roles & 50–950 ramp

primary

#1D3385

secondary

#B8A046

accent

#C441E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1D3385

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

Preview Lab → · Contrast checker → · Palette generator →