#1D4A9F#1D4A9F

#1D4A9F is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.1% C 0.147 H 261.6°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A9F
RGB	rgb(29, 74, 159)
HSL	hsl(219, 69%, 37%)
HSV	hsv(219, 82%, 62%)
CMYK	cmyk(81.8%, 53.5%, 0%, 37.6%)
CIE-LAB	lab(33.27, 17.31, -50.46)
CIE-LCH	lch(33.27, 53.35, 288.93°)
OKLab	oklab(43.06% -0.0215 -0.1455)
OKLCH	oklch(43.06% 0.147 261.6)
XYZ	xyz(9.2112, 7.6609, 33.7874)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A9F #9F721D

analogous

#1D8B9F #1D4A9F #311D9F

triadic

#1D4A9F #9F1D4A #4A9F1D

tetradic

#1D4A9F #9F1D8B #9F721D #1D9F31

square

#1D4A9F #9F1D8B #9F721D #1D9F31

split-complementary

#1D4A9F #9F311D #8B9F1D

monochromatic

#0A1A37 #14326B #1D4A9F #2662D3 #5686E0

Accessibility & contrast

On white

8.29

#1D4A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1D4A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A9F

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A9F	#FFFFFF	#000000	##FFFFFF
##1D4A9F	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A54A2

Deuteranopia (green-blind)

#00499D

Tritanopia (blue-blind)

#005F6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4a9f;
/* rgb */ color: rgb(29, 74, 159);
/* oklch */ color: oklch(43.1% 0.147 261.6);

Tailwind

colors: {
  custom: {
    50: '#6f7bbc',
    500: '#1d4a9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a9f;
$custom-light: #6f7bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a9f",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 159
  },
  "hsl": {
    "h": 219.231,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.43061,
    "c": 0.14705,
    "h": 261.6
  },
  "luminance": 0.07662
}

Semantic roles & 50–950 ramp

primary

#1D4A9F

secondary

#C49D54

accent

#AF3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4A9F

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

Preview Lab → · Contrast checker → · Palette generator →