#1D478A#1D478A

#1D478A is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.8% C 0.121 H 259.5°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D478A
RGB	rgb(29, 71, 138)
HSL	hsl(217, 65%, 33%)
HSV	hsv(217, 79%, 54%)
CMYK	cmyk(79%, 48.6%, 0%, 45.9%)
CIE-LAB	lab(30.88, 10.90, -41.52)
CIE-LCH	lch(30.88, 42.92, 284.71°)
OKLab	oklab(40.76% -0.0221 -0.1192)
OKLCH	oklch(40.76% 0.121 259.5)
XYZ	xyz(7.3457, 6.6018, 24.9270)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D478A #8A601D

analogous

#1D7D8A #1D478A #2A1D8A

triadic

#1D478A #8A1D47 #478A1D

tetradic

#1D478A #8A1D7D #8A601D #1D8A2A

square

#1D478A #8A1D7D #8A601D #1D8A2A

split-complementary

#1D478A #8A2A1D #7D8A1D

monochromatic

#081325 #122D57 #1D478A #2861BD #4980D9

Accessibility & contrast

On white

9.05

#1D478A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1D478A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D478A

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D478A	#FFFFFF	#000000	##FFFFFF
##1D478A	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224E8C

Deuteranopia (green-blind)

#034489

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d478a;
/* rgb */ color: rgb(29, 71, 138);
/* oklch */ color: oklch(40.8% 0.121 259.5);

Tailwind

colors: {
  custom: {
    50: '#6a79ad',
    500: '#1d478a',
    950: '#000000',
  },
}

SCSS

$custom: #1d478a;
$custom-light: #6a79ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d478a",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 138
  },
  "hsl": {
    "h": 216.881,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.40759,
    "c": 0.12124,
    "h": 259.5
  },
  "luminance": 0.06603
}

Semantic roles & 50–950 ramp

primary

#1D478A

secondary

#BB8F48

accent

#A740E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D478A

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

Preview Lab → · Contrast checker → · Palette generator →