#1F1D82#1F1D82

#1F1D82 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.161 H 273.2°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F1D82
RGB	rgb(31, 29, 130)
HSL	hsl(241, 64%, 31%)
HSV	hsv(241, 78%, 51%)
CMYK	cmyk(76.2%, 77.7%, 0%, 49%)
CIE-LAB	lab(19.15, 36.26, -55.66)
CIE-LCH	lch(19.15, 66.43, 303.08°)
OKLab	oklab(31.85% 0.009 -0.1611)
OKLCH	oklch(31.85% 0.161 273.2)
XYZ	xyz(5.0324, 2.7812, 21.3864)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1D82 #80821D

analogous

#1D4D82 #1F1D82 #511D82

triadic

#1F1D82 #821F1D #1D821F

tetradic

#1F1D82 #821D4D #80821D #1D8251

square

#1F1D82 #821D4D #80821D #1D8251

split-complementary

#1F1D82 #82511D #4D821D

monochromatic

#07071E #131250 #1F1D82 #2B28B4 #4744D5

Accessibility & contrast

On white

13.49

#1F1D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1F1D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1D82

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1D82	#FFFFFF	#000000	##FFFFFF
##1F1D82	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003385

Deuteranopia (green-blind)

#002A80

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f1d82;
/* rgb */ color: rgb(31, 29, 130);
/* oklch */ color: oklch(31.9% 0.161 273.2);

Tailwind

colors: {
  custom: {
    50: '#6c5ba7',
    500: '#1f1d82',
    950: '#000000',
  },
}

SCSS

$custom: #1f1d82;
$custom-light: #6c5ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1d82",
  "rgb": {
    "r": 31,
    "g": 29,
    "b": 130
  },
  "hsl": {
    "h": 241.188,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31852,
    "c": 0.16131,
    "h": 273.2
  },
  "luminance": 0.02782
}

Semantic roles & 50–950 ramp

primary

#1F1D82

secondary

#B3B546

accent

#E741E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1F1D82

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

Preview Lab → · Contrast checker → · Palette generator →