#1D4499#1D4499

#1D4499 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.3% C 0.146 H 263.0°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D4499
RGB	rgb(29, 68, 153)
HSL	hsl(221, 68%, 36%)
HSV	hsv(221, 81%, 60%)
CMYK	cmyk(81%, 55.6%, 0%, 40%)
CIE-LAB	lab(31.10, 19.00, -50.34)
CIE-LCH	lch(31.10, 53.81, 290.68°)
OKLab	oklab(41.27% -0.0178 -0.1452)
OKLCH	oklch(41.27% 0.146 263)
XYZ	xyz(8.3215, 6.6944, 30.9844)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4499 #99721D

analogous

#1D8299 #1D4499 #341D99

triadic

#1D4499 #991D44 #44991D

tetradic

#1D4499 #991D82 #99721D #1D9934

square

#1D4499 #991D82 #99721D #1D9934

split-complementary

#1D4499 #99341D #82991D

monochromatic

#091632 #132D66 #1D4499 #275BCC #527EDE

Accessibility & contrast

On white

8.98

#1D4499 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1D4499 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4499

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4499	#FFFFFF	#000000	##FFFFFF
##1D4499	1.00	8.98	2.34	8.98
#FFFFFF	8.98	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9C

Deuteranopia (green-blind)

#004497

Tritanopia (blue-blind)

#005967

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4499;
/* rgb */ color: rgb(29, 68, 153);
/* oklch */ color: oklch(41.3% 0.146 263.0);

Tailwind

colors: {
  custom: {
    50: '#6e77b8',
    500: '#1d4499',
    950: '#000000',
  },
}

SCSS

$custom: #1d4499;
$custom-light: #6e77b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4499",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 153
  },
  "hsl": {
    "h": 221.129,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41273,
    "c": 0.14632,
    "h": 263
  },
  "luminance": 0.06695
}

Semantic roles & 50–950 ramp

primary

#1D4499

secondary

#C19E51

accent

#B43DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D4499

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

Preview Lab → · Contrast checker → · Palette generator →