#1D478D#1D478D

#1D478D is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.0% C 0.126 H 260.1°. Best body text is #FFFFFF at 8.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D478D
RGB	rgb(29, 71, 141)
HSL	hsl(218, 66%, 33%)
HSV	hsv(218, 79%, 55%)
CMYK	cmyk(79.4%, 49.6%, 0%, 44.7%)
CIE-LAB	lab(31.09, 12.11, -43.03)
CIE-LCH	lch(31.09, 44.70, 285.72°)
OKLab	oklab(40.98% -0.0216 -0.1236)
OKLCH	oklch(40.98% 0.126 260.1)
XYZ	xyz(7.5659, 6.6899, 26.0867)
Luminance	0.0669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D478D #8D631D

analogous

#1D7F8D #1D478D #2B1D8D

triadic

#1D478D #8D1D47 #478D1D

tetradic

#1D478D #8D1D7F #8D631D #1D8D2B

square

#1D478D #8D1D7F #8D631D #1D8D2B

split-complementary

#1D478D #8D2B1D #7F8D1D

monochromatic

#081427 #132D5A #1D478D #2761C0 #4B80DA

Accessibility & contrast

On white

8.98

#1D478D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#1D478D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D478D

8.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D478D	#FFFFFF	#000000	##FFFFFF
##1D478D	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)

#1F4F90

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d478d;
/* rgb */ color: rgb(29, 71, 141);
/* oklch */ color: oklch(41.0% 0.126 260.1);

Tailwind

colors: {
  custom: {
    50: '#6b79af',
    500: '#1d478d',
    950: '#000000',
  },
}

SCSS

$custom: #1d478d;
$custom-light: #6b79af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d478d",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 141
  },
  "hsl": {
    "h": 217.5,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.40984,
    "c": 0.12553,
    "h": 260.1
  },
  "luminance": 0.06691
}

Semantic roles & 50–950 ramp

primary

#1D478D

secondary

#BC914A

accent

#A93FE9

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D478D

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

Preview Lab → · Contrast checker → · Palette generator →