#1F47A6#1F47A6

#1F47A6 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.1% C 0.160 H 263.7°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F47A6
RGB	rgb(31, 71, 166)
HSL	hsl(222, 69%, 39%)
HSV	hsv(222, 81%, 65%)
CMYK	cmyk(81.3%, 57.2%, 0%, 34.9%)
CIE-LAB	lab(33.03, 22.32, -55.05)
CIE-LCH	lch(33.03, 59.41, 292.07°)
OKLab	oklab(43.07% -0.0175 -0.159)
OKLCH	oklch(43.07% 0.16 263.7)
XYZ	xyz(9.6988, 7.5498, 37.0151)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F47A6 #A67E1F

analogous

#1F8AA6 #1F47A6 #3A1FA6

triadic

#1F47A6 #A61F47 #47A61F

tetradic

#1F47A6 #A61F8A #A67E1F #1FA63A

square

#1F47A6 #A61F8A #A67E1F #1FA63A

split-complementary

#1F47A6 #A63A1F #8AA61F

monochromatic

#0C1B3F #153172 #1F47A6 #2B5ED7 #5E85E1

Accessibility & contrast

On white

8.37

#1F47A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1F47A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F47A6

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F47A6	#FFFFFF	#000000	##FFFFFF
##1F47A6	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A9

Deuteranopia (green-blind)

#0048A4

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1f47a6;
/* rgb */ color: rgb(31, 71, 166);
/* oklch */ color: oklch(43.1% 0.160 263.7);

Tailwind

colors: {
  custom: {
    50: '#7279c1',
    500: '#1f47a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f47a6;
$custom-light: #7279c1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f47a6",
  "rgb": {
    "r": 31,
    "g": 71,
    "b": 166
  },
  "hsl": {
    "h": 222.222,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.43068,
    "c": 0.15996,
    "h": 263.7
  },
  "luminance": 0.07551
}

Semantic roles & 50–950 ramp

primary

#1F47A6

secondary

#C5A65B

accent

#B83CEB

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1F47A6

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

Preview Lab → · Contrast checker → · Palette generator →