#1D41A1#1D41A1

#1D41A1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.3% C 0.161 H 264.6°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#1D41A1
RGB	rgb(29, 65, 161)
HSL	hsl(224, 69%, 37%)
HSV	hsv(224, 82%, 63%)
CMYK	cmyk(82%, 59.6%, 0%, 36.9%)
CIE-LAB	lab(30.91, 24.23, -55.50)
CIE-LCH	lch(30.91, 60.55, 293.58°)
OKLab	oklab(41.33% -0.0153 -0.1604)
OKLCH	oklch(41.33% 0.161 264.6)
XYZ	xyz(8.8277, 6.6140, 34.5227)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D41A1 #A17D1D

analogous

#1D83A1 #1D41A1 #3B1DA1

triadic

#1D41A1 #A11D41 #41A11D

tetradic

#1D41A1 #A11D83 #A17D1D #1DA13B

square

#1D41A1 #A11D83 #A17D1D #1DA13B

split-complementary

#1D41A1 #A13B1D #83A11D

monochromatic

#0A1739 #142C6D #1D41A1 #2656D5 #587DE1

Accessibility & contrast

On white

9.04

#1D41A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1D41A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D41A1

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D41A1	#FFFFFF	#000000	##FFFFFF
##1D41A1	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00439F

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d41a1;
/* rgb */ color: rgb(29, 65, 161);
/* oklch */ color: oklch(41.3% 0.161 264.6);

Tailwind

colors: {
  custom: {
    50: '#7175be',
    500: '#1d41a1',
    950: '#000000',
  },
}

SCSS

$custom: #1d41a1;
$custom-light: #7175be;
$custom-dark: #000000;

JSON

{
  "hex": "#1d41a1",
  "rgb": {
    "r": 29,
    "g": 65,
    "b": 161
  },
  "hsl": {
    "h": 223.636,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.41332,
    "c": 0.16115,
    "h": 264.6
  },
  "luminance": 0.06615
}

Semantic roles & 50–950 ramp

primary

#1D41A1

secondary

#C4A655

accent

#BC3CEC

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1D41A1

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

Preview Lab → · Contrast checker → · Palette generator →