#1F3196#1F3196

#1F3196 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.165 H 268.6°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F3196
RGB	rgb(31, 49, 150)
HSL	hsl(231, 66%, 35%)
HSV	hsv(231, 79%, 59%)
CMYK	cmyk(79.3%, 67.3%, 0%, 41.2%)
CIE-LAB	lab(25.83, 30.93, -57.11)
CIE-LCH	lch(25.83, 64.95, 298.44°)
OKLab	oklab(37.29% -0.004 -0.1653)
OKLCH	oklch(37.29% 0.165 268.6)
XYZ	xyz(7.1665, 4.6891, 29.3756)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3196 #96841F

analogous

#1F6D96 #1F3196 #481F96

triadic

#1F3196 #961F31 #31961F

tetradic

#1F3196 #961F6D #96841F #1F9648

square

#1F3196 #961F6D #96841F #1F9648

split-complementary

#1F3196 #96481F #6D961F

monochromatic

#0A1031 #152063 #1F3196 #2942C9 #5468DC

Accessibility & contrast

On white

10.84

#1F3196 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#1F3196 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3196

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3196	#FFFFFF	#000000	##FFFFFF
##1F3196	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004399

Deuteranopia (green-blind)

#003894

Tritanopia (blue-blind)

#004C5F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1f3196;
/* rgb */ color: rgb(31, 49, 150);
/* oklch */ color: oklch(37.3% 0.165 268.6);

Tailwind

colors: {
  custom: {
    50: '#7069b6',
    500: '#1f3196',
    950: '#000000',
  },
}

SCSS

$custom: #1f3196;
$custom-light: #7069b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3196",
  "rgb": {
    "r": 31,
    "g": 49,
    "b": 150
  },
  "hsl": {
    "h": 230.924,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.37289,
    "c": 0.16536,
    "h": 268.6
  },
  "luminance": 0.0469
}

Semantic roles & 50–950 ramp

primary

#1F3196

secondary

#BFAE52

accent

#CF3FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #1F3196

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

Preview Lab → · Contrast checker → · Palette generator →