#1F4192#1F4192

#1F4192 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.1% C 0.140 H 264.0°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F4192
RGB	rgb(31, 65, 146)
HSL	hsl(222, 65%, 35%)
HSV	hsv(222, 79%, 57%)
CMYK	cmyk(78.8%, 55.5%, 0%, 42.7%)
CIE-LAB	lab(29.78, 18.48, -48.21)
CIE-LCH	lch(29.78, 51.63, 290.97°)
OKLab	oklab(40.12% -0.0147 -0.139)
OKLCH	oklch(40.12% 0.14 264)
XYZ	xyz(7.6418, 6.1464, 27.9722)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4192 #92701F

analogous

#1F7B92 #1F4192 #371F92

triadic

#1F4192 #921F41 #41921F

tetradic

#1F4192 #921F7B #92701F #1F9237

square

#1F4192 #921F7B #92701F #1F9237

split-complementary

#1F4192 #92371F #7B921F

monochromatic

#0A142D #142B60 #1F4192 #2A57C4 #517ADA

Accessibility & contrast

On white

9.42

#1F4192 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#1F4192 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4192

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4192	#FFFFFF	#000000	##FFFFFF
##1F4192	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C95

Deuteranopia (green-blind)

#004190

Tritanopia (blue-blind)

#005563

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1f4192;
/* rgb */ color: rgb(31, 65, 146);
/* oklch */ color: oklch(40.1% 0.140 264.0);

Tailwind

colors: {
  custom: {
    50: '#6d75b3',
    500: '#1f4192',
    950: '#000000',
  },
}

SCSS

$custom: #1f4192;
$custom-light: #6d75b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4192",
  "rgb": {
    "r": 31,
    "g": 65,
    "b": 146
  },
  "hsl": {
    "h": 222.261,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40122,
    "c": 0.13977,
    "h": 264
  },
  "luminance": 0.06147
}

Semantic roles & 50–950 ramp

primary

#1F4192

secondary

#BD9D50

accent

#B640E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1F4192

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

Preview Lab → · Contrast checker → · Palette generator →