#1D4699#1D4699

#1D4699 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 41.7% C 0.144 H 262.3°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#1D4699
RGB	rgb(29, 70, 153)
HSL	hsl(220, 68%, 36%)
HSV	hsv(220, 81%, 60%)
CMYK	cmyk(81%, 54.2%, 0%, 40%)
CIE-LAB	lab(31.67, 17.63, -49.42)
CIE-LCH	lch(31.67, 52.47, 289.64°)
OKLab	oklab(41.71% -0.0193 -0.1425)
OKLCH	oklch(41.71% 0.144 262.3)
XYZ	xyz(8.4446, 6.9404, 31.0254)
Luminance	0.0694 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4699 #99701D

analogous

#1D8499 #1D4699 #321D99

triadic

#1D4699 #991D46 #46991D

tetradic

#1D4699 #991D84 #99701D #1D9932

square

#1D4699 #991D84 #99701D #1D9932

split-complementary

#1D4699 #99321D #84991D

monochromatic

#091732 #132E66 #1D4699 #275ECC #5280DE

Accessibility & contrast

On white

8.79

#1D4699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#1D4699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4699

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4699	#FFFFFF	#000000	##FFFFFF
##1D4699	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04509C

Deuteranopia (green-blind)

#004597

Tritanopia (blue-blind)

#005A68

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d4699;
/* rgb */ color: rgb(29, 70, 153);
/* oklch */ color: oklch(41.7% 0.144 262.3);

Tailwind

colors: {
  custom: {
    50: '#6e78b8',
    500: '#1d4699',
    950: '#000000',
  },
}

SCSS

$custom: #1d4699;
$custom-light: #6e78b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4699",
  "rgb": {
    "r": 29,
    "g": 70,
    "b": 153
  },
  "hsl": {
    "h": 220.161,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.41706,
    "c": 0.14377,
    "h": 262.3
  },
  "luminance": 0.06941
}

Semantic roles & 50–950 ramp

primary

#1D4699

secondary

#C19C51

accent

#B13DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4699

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

Preview Lab → · Contrast checker → · Palette generator →