#1F3192#1F3192

#1F3192 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.160 H 268.7°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#1F3192
RGB	rgb(31, 49, 146)
HSL	hsl(231, 65%, 35%)
HSV	hsv(231, 79%, 57%)
CMYK	cmyk(78.8%, 66.4%, 0%, 42.7%)
CIE-LAB	lab(25.45, 29.41, -55.27)
CIE-LCH	lch(25.45, 62.61, 298.02°)
OKLab	oklab(36.9% -0.0037 -0.1599)
OKLCH	oklch(36.9% 0.16 268.7)
XYZ	xyz(6.8499, 4.5625, 27.7082)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3192 #92801F

analogous

#1F6A92 #1F3192 #471F92

triadic

#1F3192 #921F31 #31921F

tetradic

#1F3192 #921F6A #92801F #1F9247

square

#1F3192 #921F6A #92801F #1F9247

split-complementary

#1F3192 #92471F #6A921F

monochromatic

#0A0F2D #142060 #1F3192 #2A42C4 #5167DA

Accessibility & contrast

On white

10.98

#1F3192 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1F3192 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3192

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3192	#FFFFFF	#000000	##FFFFFF
##1F3192	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004295

Deuteranopia (green-blind)

#003790

Tritanopia (blue-blind)

#004B5D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1f3192;
/* rgb */ color: rgb(31, 49, 146);
/* oklch */ color: oklch(36.9% 0.160 268.7);

Tailwind

colors: {
  custom: {
    50: '#6f69b3',
    500: '#1f3192',
    950: '#000000',
  },
}

SCSS

$custom: #1f3192;
$custom-light: #6f69b3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3192",
  "rgb": {
    "r": 31,
    "g": 49,
    "b": 146
  },
  "hsl": {
    "h": 230.609,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.36895,
    "c": 0.15998,
    "h": 268.7
  },
  "luminance": 0.04563
}

Semantic roles & 50–950 ramp

primary

#1F3192

secondary

#BDAC50

accent

#CE40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1F3192

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

Preview Lab → · Contrast checker → · Palette generator →