#1D3785#1D3785

#1D3785 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.8% C 0.135 H 265.9°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D3785
RGB	rgb(29, 55, 133)
HSL	hsl(225, 64%, 32%)
HSV	hsv(225, 78%, 52%)
CMYK	cmyk(78.2%, 58.6%, 0%, 47.8%)
CIE-LAB	lab(25.82, 19.97, -46.60)
CIE-LCH	lch(25.82, 50.70, 293.20°)
OKLab	oklab(36.79% -0.0096 -0.1345)
OKLCH	oklch(36.79% 0.135 265.9)
XYZ	xyz(6.1050, 4.6864, 22.7686)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3785 #856B1D

analogous

#1D6B85 #1D3785 #371D85

triadic

#1D3785 #851D37 #37851D

tetradic

#1D3785 #851D6B #856B1D #1D8537

square

#1D3785 #851D6B #856B1D #1D8537

split-complementary

#1D3785 #85371D #6B851D

monochromatic

#070D21 #122253 #1D3785 #284CB7 #466AD7

Accessibility & contrast

On white

10.84

#1D3785 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1D3785 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3785

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3785	#FFFFFF	#000000	##FFFFFF
##1D3785	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004288

Deuteranopia (green-blind)

#003983

Tritanopia (blue-blind)

#004A58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d3785;
/* rgb */ color: rgb(29, 55, 133);
/* oklch */ color: oklch(36.8% 0.135 265.9);

Tailwind

colors: {
  custom: {
    50: '#6a6da9',
    500: '#1d3785',
    950: '#000000',
  },
}

SCSS

$custom: #1d3785;
$custom-light: #6a6da9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3785",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 133
  },
  "hsl": {
    "h": 225,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36791,
    "c": 0.13482,
    "h": 265.9
  },
  "luminance": 0.04687
}

Semantic roles & 50–950 ramp

primary

#1D3785

secondary

#B89B46

accent

#BE41E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3785

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

Preview Lab → · Contrast checker → · Palette generator →