#1D3A86#1D3A86

#1D3A86 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.132 H 264.9°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D3A86
RGB	rgb(29, 58, 134)
HSL	hsl(223, 64%, 32%)
HSV	hsv(223, 78%, 53%)
CMYK	cmyk(78.4%, 56.7%, 0%, 47.5%)
CIE-LAB	lab(26.76, 18.28, -45.71)
CIE-LCH	lch(26.76, 49.23, 291.80°)
OKLab	oklab(37.52% -0.0119 -0.1318)
OKLCH	oklch(37.52% 0.132 264.9)
XYZ	xyz(6.3213, 5.0078, 23.1831)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3A86 #86691D

analogous

#1D6E86 #1D3A86 #351D86

triadic

#1D3A86 #861D3A #3A861D

tetradic

#1D3A86 #861D6E #86691D #1D8635

square

#1D3A86 #861D6E #86691D #1D8635

split-complementary

#1D3A86 #86351D #6E861D

monochromatic

#070E21 #122454 #1D3A86 #2850B8 #466ED7

Accessibility & contrast

On white

10.49

#1D3A86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1D3A86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3A86

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3A86	#FFFFFF	#000000	##FFFFFF
##1D3A86	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004489

Deuteranopia (green-blind)

#003B85

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d3a86;
/* rgb */ color: rgb(29, 58, 134);
/* oklch */ color: oklch(37.5% 0.132 264.9);

Tailwind

colors: {
  custom: {
    50: '#6a6faa',
    500: '#1d3a86',
    950: '#000000',
  },
}

SCSS

$custom: #1d3a86;
$custom-light: #6a6faa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3a86",
  "rgb": {
    "r": 29,
    "g": 58,
    "b": 134
  },
  "hsl": {
    "h": 223.429,
    "s": 64.417,
    "l": 31.961
  },
  "oklch": {
    "l": 0.3752,
    "c": 0.13232,
    "h": 264.9
  },
  "luminance": 0.05009
}

Semantic roles & 50–950 ramp

primary

#1D3A86

secondary

#B99946

accent

#B940E7

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1D3A86

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

Preview Lab → · Contrast checker → · Palette generator →