#1F4190#1F4190

#1F4190 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.0% C 0.137 H 263.8°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F4190
RGB	rgb(31, 65, 144)
HSL	hsl(222, 65%, 34%)
HSV	hsv(222, 78%, 56%)
CMYK	cmyk(78.5%, 54.9%, 0%, 43.5%)
CIE-LAB	lab(29.63, 17.68, -47.23)
CIE-LCH	lch(29.63, 50.43, 290.52°)
OKLab	oklab(39.96% -0.0149 -0.1361)
OKLCH	oklch(39.96% 0.137 263.8)
XYZ	xyz(7.4876, 6.0847, 27.1600)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4190 #906E1F

analogous

#1F7A90 #1F4190 #361F90

triadic

#1F4190 #901F41 #41901F

tetradic

#1F4190 #901F7A #906E1F #1F9036

square

#1F4190 #901F7A #906E1F #1F9036

split-complementary

#1F4190 #90361F #7A901F

monochromatic

#09142B #142A5E #1F4190 #2A58C2 #5079D9

Accessibility & contrast

On white

9.47

#1F4190 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1F4190 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4190

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4190	#FFFFFF	#000000	##FFFFFF
##1F4190	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024B93

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4190;
/* rgb */ color: rgb(31, 65, 144);
/* oklch */ color: oklch(40.0% 0.137 263.8);

Tailwind

colors: {
  custom: {
    50: '#6d75b1',
    500: '#1f4190',
    950: '#000000',
  },
}

SCSS

$custom: #1f4190;
$custom-light: #6d75b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4190",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 144
  },
  "hsl": {
    "h": 221.947,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39957,
    "c": 0.13693,
    "h": 263.8
  },
  "luminance": 0.06086
}

Semantic roles & 50–950 ramp

primary

#1F4190

secondary

#BC9B4E

accent

#B540E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4190

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

Preview Lab → · Contrast checker → · Palette generator →