#1D4899#1D4899

#1D4899 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.1% C 0.141 H 261.6°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#1D4899
RGB	rgb(29, 72, 153)
HSL	hsl(219, 68%, 36%)
HSV	hsv(219, 81%, 60%)
CMYK	cmyk(81%, 52.9%, 0%, 40%)
CIE-LAB	lab(32.25, 16.27, -48.48)
CIE-LCH	lch(32.25, 51.14, 288.55°)
OKLab	oklab(42.14% -0.0207 -0.1397)
OKLCH	oklch(42.14% 0.141 261.6)
XYZ	xyz(8.5718, 7.1948, 31.0678)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4899 #996E1D

analogous

#1D8699 #1D4899 #301D99

triadic

#1D4899 #991D48 #48991D

tetradic

#1D4899 #991D86 #996E1D #1D9930

square

#1D4899 #991D86 #996E1D #1D9930

split-complementary

#1D4899 #99301D #86991D

monochromatic

#091832 #133066 #1D4899 #2760CC #5283DE

Accessibility & contrast

On white

8.61

#1D4899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1D4899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4899

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4899	#FFFFFF	#000000	##FFFFFF
##1D4899	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F529C

Deuteranopia (green-blind)

#004797

Tritanopia (blue-blind)

#005C69

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d4899;
/* rgb */ color: rgb(29, 72, 153);
/* oklch */ color: oklch(42.1% 0.141 261.6);

Tailwind

colors: {
  custom: {
    50: '#6e7ab8',
    500: '#1d4899',
    950: '#000000',
  },
}

SCSS

$custom: #1d4899;
$custom-light: #6e7ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4899",
  "rgb": {
    "r": 29,
    "g": 72,
    "b": 153
  },
  "hsl": {
    "h": 219.194,
    "s": 68.132,
    "l": 35.686
  },
  "oklch": {
    "l": 0.42143,
    "c": 0.14122,
    "h": 261.6
  },
  "luminance": 0.07196
}

Semantic roles & 50–950 ramp

primary

#1D4899

secondary

#C19A51

accent

#AF3DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4899

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

Preview Lab → · Contrast checker → · Palette generator →