#1F2291#1F2291

#1F2291 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.175 H 271.3°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F2291
RGB	rgb(31, 34, 145)
HSL	hsl(238, 65%, 35%)
HSV	hsv(238, 79%, 57%)
CMYK	cmyk(78.6%, 76.6%, 0%, 43.1%)
CIE-LAB	lab(21.87, 38.55, -60.55)
CIE-LCH	lch(21.87, 71.78, 302.48°)
OKLab	oklab(34.28% 0.0039 -0.1753)
OKLCH	oklch(34.28% 0.175 271.3)
XYZ	xyz(6.2462, 3.4790, 27.1249)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2291 #918E1F

analogous

#1F5B91 #1F2291 #551F91

triadic

#1F2291 #911F22 #22911F

tetradic

#1F2291 #911F5B #918E1F #1F9155

square

#1F2291 #911F5B #918E1F #1F9155

split-complementary

#1F2291 #91551F #5B911F

monochromatic

#090A2C #14165F #1F2291 #2A2EC3 #5154DA

Accessibility & contrast

On white

12.38

#1F2291 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1F2291 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2291

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2291	#FFFFFF	#000000	##FFFFFF
##1F2291	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A94

Deuteranopia (green-blind)

#002F8F

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f2291;
/* rgb */ color: rgb(31, 34, 145);
/* oklch */ color: oklch(34.3% 0.175 271.3);

Tailwind

colors: {
  custom: {
    50: '#705fb2',
    500: '#1f2291',
    950: '#000000',
  },
}

SCSS

$custom: #1f2291;
$custom-light: #705fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2291",
  "rgb": {
    "r": 31,
    "g": 34,
    "b": 145
  },
  "hsl": {
    "h": 238.421,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.34279,
    "c": 0.17537,
    "h": 271.3
  },
  "luminance": 0.0348
}

Semantic roles & 50–950 ramp

primary

#1F2291

secondary

#BDBA4F

accent

#E340E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F2291

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

Preview Lab → · Contrast checker → · Palette generator →