#1D4E9A#1D4E9A

#1D4E9A is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.6% C 0.135 H 259.2°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D4E9A
RGB	rgb(29, 78, 154)
HSL	hsl(216, 68%, 36%)
HSV	hsv(216, 81%, 60%)
CMYK	cmyk(81.2%, 49.4%, 0%, 39.6%)
CIE-LAB	lab(34.07, 12.60, -46.14)
CIE-LCH	lch(34.07, 47.83, 285.27°)
OKLab	oklab(43.56% -0.0253 -0.1327)
OKLCH	oklch(43.56% 0.135 259.2)
XYZ	xyz(9.0617, 8.0420, 31.6403)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4E9A #9A691D

analogous

#1D8C9A #1D4E9A #2A1D9A

triadic

#1D4E9A #9A1D4E #4E9A1D

tetradic

#1D4E9A #9A1D8C #9A691D #1D9A2A

square

#1D4E9A #9A1D8C #9A691D #1D9A2A

split-complementary

#1D4E9A #9A2A1D #8C9A1D

monochromatic

#0A1A33 #133466 #1D4E9A #2768CE #538ADF

Accessibility & contrast

On white

8.05

#1D4E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1D4E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4E9A

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4E9A	#FFFFFF	#000000	##FFFFFF
##1D4E9A	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22569D

Deuteranopia (green-blind)

#004B98

Tritanopia (blue-blind)

#00606C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d4e9a;
/* rgb */ color: rgb(29, 78, 154);
/* oklch */ color: oklch(43.6% 0.135 259.2);

Tailwind

colors: {
  custom: {
    50: '#6e7eb8',
    500: '#1d4e9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d4e9a;
$custom-light: #6e7eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4e9a",
  "rgb": {
    "r": 29,
    "g": 78,
    "b": 154
  },
  "hsl": {
    "h": 216.48,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.43561,
    "c": 0.13507,
    "h": 259.2
  },
  "luminance": 0.08043
}

Semantic roles & 50–950 ramp

primary

#1D4E9A

secondary

#C29651

accent

#A73DEB

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1D4E9A

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

Preview Lab → · Contrast checker → · Palette generator →