#1F2C83#1F2C83

#1F2C83 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.5% C 0.146 H 270.1°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C83
RGB	rgb(31, 44, 131)
HSL	hsl(232, 62%, 32%)
HSV	hsv(232, 76%, 51%)
CMYK	cmyk(76.3%, 66.4%, 0%, 48.6%)
CIE-LAB	lab(22.76, 27.04, -50.34)
CIE-LCH	lch(22.76, 57.14, 298.24°)
OKLab	oklab(34.49% 0.0002 -0.1456)
OKLCH	oklch(34.49% 0.146 270.1)
XYZ	xyz(5.5611, 3.7308, 21.8954)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C83 #83761F

analogous

#1F5E83 #1F2C83 #441F83

triadic

#1F2C83 #831F2C #2C831F

tetradic

#1F2C83 #831F5E #83761F #1F8344

square

#1F2C83 #831F5E #83761F #1F8344

split-complementary

#1F2C83 #83441F #5E831F

monochromatic

#080B20 #131B52 #1F2C83 #2B3DB4 #495BD4

Accessibility & contrast

On white

12.03

#1F2C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1F2C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C83

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C83	#FFFFFF	#000000	##FFFFFF
##1F2C83	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B86

Deuteranopia (green-blind)

#003281

Tritanopia (blue-blind)

#004353

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1f2c83;
/* rgb */ color: rgb(31, 44, 131);
/* oklch */ color: oklch(34.5% 0.146 270.1);

Tailwind

colors: {
  custom: {
    50: '#6b65a8',
    500: '#1f2c83',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c83;
$custom-light: #6b65a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c83",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 131
  },
  "hsl": {
    "h": 232.2,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.34489,
    "c": 0.14555,
    "h": 270.1
  },
  "luminance": 0.03731
}

Semantic roles & 50–950 ramp

primary

#1F2C83

secondary

#B6A748

accent

#D043E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080510

muted

#7A7A7F

Preview Lab

Preview with #1F2C83

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

Preview Lab → · Contrast checker → · Palette generator →