#1D4AA0#1D4AA0

#1D4AA0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.1% C 0.148 H 261.7°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D4AA0
RGB	rgb(29, 74, 160)
HSL	hsl(219, 69%, 37%)
HSV	hsv(219, 82%, 63%)
CMYK	cmyk(81.9%, 53.7%, 0%, 37.3%)
CIE-LAB	lab(33.34, 17.71, -50.94)
CIE-LCH	lch(33.34, 53.93, 289.17°)
OKLab	oklab(43.14% -0.0214 -0.1469)
OKLCH	oklch(43.14% 0.148 261.7)
XYZ	xyz(9.2983, 7.6957, 34.2462)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4AA0 #A0731D

analogous

#1D8CA0 #1D4AA0 #311DA0

triadic

#1D4AA0 #A01D4A #4AA01D

tetradic

#1D4AA0 #A01D8C #A0731D #1DA031

square

#1D4AA0 #A01D8C #A0731D #1DA031

split-complementary

#1D4AA0 #A0311D #8CA01D

monochromatic

#0A1A38 #14326C #1D4AA0 #2662D4 #5786E1

Accessibility & contrast

On white

8.27

#1D4AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1D4AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4AA0

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4AA0	#FFFFFF	#000000	##FFFFFF
##1D4AA0	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0655A3

Deuteranopia (green-blind)

#00499E

Tritanopia (blue-blind)

#005F6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4aa0;
/* rgb */ color: rgb(29, 74, 160);
/* oklch */ color: oklch(43.1% 0.148 261.7);

Tailwind

colors: {
  custom: {
    50: '#707bbd',
    500: '#1d4aa0',
    950: '#000000',
  },
}

SCSS

$custom: #1d4aa0;
$custom-light: #707bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4aa0",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 160
  },
  "hsl": {
    "h": 219.389,
    "s": 69.312,
    "l": 37.059
  },
  "oklch": {
    "l": 0.43141,
    "c": 0.14844,
    "h": 261.7
  },
  "luminance": 0.07697
}

Semantic roles & 50–950 ramp

primary

#1D4AA0

secondary

#C49E55

accent

#B03CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4AA0

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

Preview Lab → · Contrast checker → · Palette generator →