#1F2F83#1F2F83

#1F2F83 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.1% C 0.142 H 269.2°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F83
RGB	rgb(31, 47, 131)
HSL	hsl(230, 62%, 32%)
HSV	hsv(230, 76%, 51%)
CMYK	cmyk(76.3%, 64.1%, 0%, 48.6%)
CIE-LAB	lab(23.55, 24.99, -49.06)
CIE-LCH	lch(23.55, 55.05, 296.99°)
OKLab	oklab(35.07% -0.0019 -0.1417)
OKLCH	oklch(35.07% 0.142 269.2)
XYZ	xyz(5.6769, 3.9624, 21.9340)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F83 #83731F

analogous

#1F6183 #1F2F83 #411F83

triadic

#1F2F83 #831F2F #2F831F

tetradic

#1F2F83 #831F61 #83731F #1F8341

square

#1F2F83 #831F61 #83731F #1F8341

split-complementary

#1F2F83 #83411F #61831F

monochromatic

#080B20 #131D52 #1F2F83 #2B41B4 #495FD4

Accessibility & contrast

On white

11.71

#1F2F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1F2F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F83

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F83	#FFFFFF	#000000	##FFFFFF
##1F2F83	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004554

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2f83;
/* rgb */ color: rgb(31, 47, 131);
/* oklch */ color: oklch(35.1% 0.142 269.2);

Tailwind

colors: {
  custom: {
    50: '#6b67a8',
    500: '#1f2f83',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f83;
$custom-light: #6b67a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f83",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 131
  },
  "hsl": {
    "h": 230.4,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.35068,
    "c": 0.14176,
    "h": 269.2
  },
  "luminance": 0.03963
}

Semantic roles & 50–950 ramp

primary

#1F2F83

secondary

#B6A448

accent

#CB43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #1F2F83

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

Preview Lab → · Contrast checker → · Palette generator →