#1F3C92#1F3C92

#1F3C92 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.1% C 0.146 H 265.7°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F3C92
RGB	rgb(31, 60, 146)
HSL	hsl(225, 65%, 35%)
HSV	hsv(225, 79%, 57%)
CMYK	cmyk(78.8%, 58.9%, 0%, 42.7%)
CIE-LAB	lab(28.37, 21.92, -50.50)
CIE-LCH	lch(28.37, 55.05, 293.47°)
OKLab	oklab(39.06% -0.011 -0.1458)
OKLCH	oklch(39.06% 0.146 265.7)
XYZ	xyz(7.3674, 5.5975, 27.8807)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3C92 #92751F

analogous

#1F7592 #1F3C92 #3C1F92

triadic

#1F3C92 #921F3C #3C921F

tetradic

#1F3C92 #921F75 #92751F #1F923C

square

#1F3C92 #921F75 #92751F #1F923C

split-complementary

#1F3C92 #923C1F #75921F

monochromatic

#0A132D #142760 #1F3C92 #2A51C4 #5174DA

Accessibility & contrast

On white

9.91

#1F3C92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1F3C92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3C92

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3C92	#FFFFFF	#000000	##FFFFFF
##1F3C92	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004895

Deuteranopia (green-blind)

#003E90

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1f3c92;
/* rgb */ color: rgb(31, 60, 146);
/* oklch */ color: oklch(39.1% 0.146 265.7);

Tailwind

colors: {
  custom: {
    50: '#6e71b3',
    500: '#1f3c92',
    950: '#000000',
  },
}

SCSS

$custom: #1f3c92;
$custom-light: #6e71b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3c92",
  "rgb": {
    "r": 31,
    "g": 60,
    "b": 146
  },
  "hsl": {
    "h": 224.87,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39064,
    "c": 0.1462,
    "h": 265.7
  },
  "luminance": 0.05598
}

Semantic roles & 50–950 ramp

primary

#1F3C92

secondary

#BDA250

accent

#BE40E8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1F3C92

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

Preview Lab → · Contrast checker → · Palette generator →