#1F2191#1F2191

#1F2191 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.1% C 0.176 H 271.4°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F2191
RGB	rgb(31, 33, 145)
HSL	hsl(239, 65%, 35%)
HSV	hsv(239, 79%, 57%)
CMYK	cmyk(78.6%, 77.2%, 0%, 43.1%)
CIE-LAB	lab(21.66, 39.13, -60.89)
CIE-LCH	lch(21.66, 72.38, 302.72°)
OKLab	oklab(34.13% 0.0043 -0.1763)
OKLCH	oklch(34.13% 0.176 271.4)
XYZ	xyz(6.2180, 3.4227, 27.1155)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2191 #918F1F

analogous

#1F5A91 #1F2191 #561F91

triadic

#1F2191 #911F21 #21911F

tetradic

#1F2191 #911F5A #918F1F #1F9156

square

#1F2191 #911F5A #918F1F #1F9156

split-complementary

#1F2191 #91561F #5A911F

monochromatic

#090A2C #14165F #1F2191 #2A2CC3 #5153DA

Accessibility & contrast

On white

12.47

#1F2191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1F2191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2191

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2191	#FFFFFF	#000000	##FFFFFF
##1F2191	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A94

Deuteranopia (green-blind)

#002E8F

Tritanopia (blue-blind)

#004258

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2191;
/* rgb */ color: rgb(31, 33, 145);
/* oklch */ color: oklch(34.1% 0.176 271.4);

Tailwind

colors: {
  custom: {
    50: '#705eb2',
    500: '#1f2191',
    950: '#000000',
  },
}

SCSS

$custom: #1f2191;
$custom-light: #705eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2191",
  "rgb": {
    "r": 31,
    "g": 33,
    "b": 145
  },
  "hsl": {
    "h": 238.947,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34133,
    "c": 0.17635,
    "h": 271.4
  },
  "luminance": 0.03423
}

Semantic roles & 50–950 ramp

primary

#1F2191

secondary

#BDBB4F

accent

#E540E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F2191

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

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