#1D4A9E#1D4A9E

#1D4A9E is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.0% C 0.146 H 261.4°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A9E
RGB	rgb(29, 74, 158)
HSL	hsl(219, 69%, 37%)
HSV	hsv(219, 82%, 62%)
CMYK	cmyk(81.6%, 53.2%, 0%, 38%)
CIE-LAB	lab(33.19, 16.91, -49.98)
CIE-LCH	lch(33.19, 52.76, 288.69°)
OKLab	oklab(42.98% -0.0217 -0.144)
OKLCH	oklch(42.98% 0.146 261.4)
XYZ	xyz(9.1248, 7.6263, 33.3322)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A9E #9E711D

analogous

#1D8B9E #1D4A9E #311D9E

triadic

#1D4A9E #9E1D4A #4A9E1D

tetradic

#1D4A9E #9E1D8B #9E711D #1D9E31

square

#1D4A9E #9E1D8B #9E711D #1D9E31

split-complementary

#1D4A9E #9E311D #8B9E1D

monochromatic

#0A1A37 #14326A #1D4A9E #2662D2 #5686E0

Accessibility & contrast

On white

8.32

#1D4A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1D4A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A9E

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A9E	#FFFFFF	#000000	##FFFFFF
##1D4A9E	1.00	8.32	2.53	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D54A1

Deuteranopia (green-blind)

#00489C

Tritanopia (blue-blind)

#005F6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4a9e;
/* rgb */ color: rgb(29, 74, 158);
/* oklch */ color: oklch(43.0% 0.146 261.4);

Tailwind

colors: {
  custom: {
    50: '#6f7bbb',
    500: '#1d4a9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a9e;
$custom-light: #6f7bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a9e",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 158
  },
  "hsl": {
    "h": 219.07,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42981,
    "c": 0.14566,
    "h": 261.4
  },
  "luminance": 0.07627
}

Semantic roles & 50–950 ramp

primary

#1D4A9E

secondary

#C39C54

accent

#AE3CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4A9E

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

Preview Lab → · Contrast checker → · Palette generator →