#1F2483#1F2483

#1F2483 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.1% C 0.155 H 271.9°. Best body text is #FFFFFF at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F2483
RGB	rgb(31, 36, 131)
HSL	hsl(237, 62%, 32%)
HSV	hsv(237, 76%, 51%)
CMYK	cmyk(76.3%, 72.5%, 0%, 48.6%)
CIE-LAB	lab(20.79, 32.32, -53.57)
CIE-LCH	lch(20.79, 62.57, 301.10°)
OKLab	oklab(33.06% 0.0052 -0.155)
OKLCH	oklch(33.06% 0.155 271.9)
XYZ	xyz(5.2913, 3.1912, 21.8054)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2483 #837E1F

analogous

#1F5683 #1F2483 #4C1F83

triadic

#1F2483 #831F24 #24831F

tetradic

#1F2483 #831F56 #837E1F #1F834C

square

#1F2483 #831F56 #837E1F #1F834C

split-complementary

#1F2483 #834C1F #56831F

monochromatic

#080920 #131652 #1F2483 #2B32B4 #4950D4

Accessibility & contrast

On white

12.82

#1F2483 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F2483 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2483

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2483	#FFFFFF	#000000	##FFFFFF
##1F2483	1.00	12.82	1.64	12.82
#FFFFFF	12.82	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003786

Deuteranopia (green-blind)

#002D81

Tritanopia (blue-blind)

#003E50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2483;
/* rgb */ color: rgb(31, 36, 131);
/* oklch */ color: oklch(33.1% 0.155 271.9);

Tailwind

colors: {
  custom: {
    50: '#6c5fa8',
    500: '#1f2483',
    950: '#000000',
  },
}

SCSS

$custom: #1f2483;
$custom-light: #6c5fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2483",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 131
  },
  "hsl": {
    "h": 237,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3306,
    "c": 0.15511,
    "h": 271.9
  },
  "luminance": 0.03192
}

Semantic roles & 50–950 ramp

primary

#1F2483

secondary

#B6B048

accent

#DD43E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F2483

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

Preview Lab → · Contrast checker → · Palette generator →