#1D3B86#1D3B86

#1D3B86 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.131 H 264.5°. Best body text is #FFFFFF at 10.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D3B86
RGB	rgb(29, 59, 134)
HSL	hsl(223, 64%, 32%)
HSV	hsv(223, 78%, 53%)
CMYK	cmyk(78.4%, 56%, 0%, 47.5%)
CIE-LAB	lab(27.05, 17.58, -45.24)
CIE-LCH	lch(27.05, 48.54, 291.24°)
OKLab	oklab(37.74% -0.0126 -0.1304)
OKLCH	oklch(37.74% 0.131 264.5)
XYZ	xyz(6.3722, 5.1097, 23.2001)
Luminance	0.0511 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3B86 #86681D

analogous

#1D7086 #1D3B86 #341D86

triadic

#1D3B86 #861D3B #3B861D

tetradic

#1D3B86 #861D70 #86681D #1D8634

square

#1D3B86 #861D70 #86681D #1D8634

split-complementary

#1D3B86 #86341D #70861D

monochromatic

#070F21 #122554 #1D3B86 #2851B8 #4670D7

Accessibility & contrast

On white

10.39

#1D3B86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1D3B86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3B86

10.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3B86	#FFFFFF	#000000	##FFFFFF
##1D3B86	1.00	10.39	2.02	10.39
#FFFFFF	10.39	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004589

Deuteranopia (green-blind)

#003B85

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d3b86;
/* rgb */ color: rgb(29, 59, 134);
/* oklch */ color: oklch(37.7% 0.131 264.5);

Tailwind

colors: {
  custom: {
    50: '#6a70aa',
    500: '#1d3b86',
    950: '#000000',
  },
}

SCSS

$custom: #1d3b86;
$custom-light: #6a70aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3b86",
  "rgb": {
    "r": 29,
    "g": 59,
    "b": 134
  },
  "hsl": {
    "h": 222.857,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37737,
    "c": 0.13101,
    "h": 264.5
  },
  "luminance": 0.0511
}

Semantic roles & 50–950 ramp

primary

#1D3B86

secondary

#B99846

accent

#B840E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3B86

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

Preview Lab → · Contrast checker → · Palette generator →