#1D478C#1D478C

#1D478C is a dark, vivid blue. Relative luminance 0.067; OKLCH L 40.9% C 0.124 H 259.9°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#1D478C
RGB	rgb(29, 71, 140)
HSL	hsl(217, 66%, 33%)
HSV	hsv(217, 79%, 55%)
CMYK	cmyk(79.3%, 49.3%, 0%, 45.1%)
CIE-LAB	lab(31.02, 11.71, -42.53)
CIE-LCH	lch(31.02, 44.11, 285.39°)
OKLab	oklab(40.91% -0.0218 -0.1222)
OKLCH	oklch(40.91% 0.124 259.9)
XYZ	xyz(7.4918, 6.6603, 25.6966)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D478C #8C621D

analogous

#1D7E8C #1D478C #2A1D8C

triadic

#1D478C #8C1D47 #478C1D

tetradic

#1D478C #8C1D7E #8C621D #1D8C2A

square

#1D478C #8C1D7E #8C621D #1D8C2A

split-complementary

#1D478C #8C2A1D #7E8C1D

monochromatic

#081427 #122D59 #1D478C #2861BF #4A80D9

Accessibility & contrast

On white

9.00

#1D478C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1D478C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D478C

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D478C	#FFFFFF	#000000	##FFFFFF
##1D478C	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204E8F

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d478c;
/* rgb */ color: rgb(29, 71, 140);
/* oklch */ color: oklch(40.9% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#6b79ae',
    500: '#1d478c',
    950: '#000000',
  },
}

SCSS

$custom: #1d478c;
$custom-light: #6b79ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d478c",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 140
  },
  "hsl": {
    "h": 217.297,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40909,
    "c": 0.1241,
    "h": 259.9
  },
  "luminance": 0.06661
}

Semantic roles & 50–950 ramp

primary

#1D478C

secondary

#BC9049

accent

#A93FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D478C

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

Preview Lab → · Contrast checker → · Palette generator →