#1D4A9C#1D4A9C

#1D4A9C is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.8% C 0.143 H 261.2°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A9C
RGB	rgb(29, 74, 156)
HSL	hsl(219, 69%, 36%)
HSV	hsv(219, 81%, 61%)
CMYK	cmyk(81.4%, 52.6%, 0%, 38.8%)
CIE-LAB	lab(33.04, 16.11, -49.01)
CIE-LCH	lch(33.04, 51.59, 288.19°)
OKLab	oklab(42.82% -0.0219 -0.1412)
OKLCH	oklch(42.82% 0.143 261.2)
XYZ	xyz(8.9541, 7.5580, 32.4330)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A9C #9C6F1D

analogous

#1D8A9C #1D4A9C #301D9C

triadic

#1D4A9C #9C1D4A #4A9C1D

tetradic

#1D4A9C #9C1D8A #9C6F1D #1D9C30

square

#1D4A9C #9C1D8A #9C6F1D #1D9C30

split-complementary

#1D4A9C #9C301D #8A9C1D

monochromatic

#0A1935 #133268 #1D4A9C #2762D0 #5485DF

Accessibility & contrast

On white

8.36

#1D4A9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1D4A9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A9C

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A9C	#FFFFFF	#000000	##FFFFFF
##1D4A9C	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12549F

Deuteranopia (green-blind)

#00489A

Tritanopia (blue-blind)

#005E6B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1d4a9c;
/* rgb */ color: rgb(29, 74, 156);
/* oklch */ color: oklch(42.8% 0.143 261.2);

Tailwind

colors: {
  custom: {
    50: '#6f7bba',
    500: '#1d4a9c',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a9c;
$custom-light: #6f7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a9c",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 156
  },
  "hsl": {
    "h": 218.74,
    "s": 68.649,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42822,
    "c": 0.14288,
    "h": 261.2
  },
  "luminance": 0.07559
}

Semantic roles & 50–950 ramp

primary

#1D4A9C

secondary

#C29B52

accent

#AD3CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080912

muted

#7B7B81

Preview Lab

Preview with #1D4A9C

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

Preview Lab → · Contrast checker → · Palette generator →