#1F109F#1F109F

#1F109F is a dark, highly saturated blue. Relative luminance 0.032; OKLCH L 34.0% C 0.206 H 271.5°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#1F109F
RGB	rgb(31, 16, 159)
HSL	hsl(246, 82%, 34%)
HSV	hsv(246, 90%, 62%)
CMYK	cmyk(80.5%, 89.9%, 0%, 37.6%)
CIE-LAB	lab(20.69, 51.50, -71.13)
CIE-LCH	lch(20.69, 87.82, 305.90°)
OKLab	oklab(33.96% 0.0052 -0.2056)
OKLCH	oklch(33.96% 0.206 271.5)
XYZ	xyz(7.0063, 3.1643, 33.0357)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F109F #909F10

analogous

#10489F #1F109F #67109F

triadic

#1F109F #9F1F10 #109F1F

tetradic

#1F109F #9F1048 #909F10 #109F67

square

#1F109F #9F1048 #909F10 #109F67

split-complementary

#1F109F #9F6710 #489F10

monochromatic

#090530 #140A67 #1F109F #2A16D7 #503EEC

Accessibility & contrast

On white

12.86

#1F109F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#1F109F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F109F

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F109F	#FFFFFF	#000000	##FFFFFF
##1F109F	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0038A3

Deuteranopia (green-blind)

#002B9D

Tritanopia (blue-blind)

#00425D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f109f;
/* rgb */ color: rgb(31, 16, 159);
/* oklch */ color: oklch(34.0% 0.206 271.5);

Tailwind

colors: {
  custom: {
    50: '#7556bd',
    500: '#1f109f',
    950: '#000000',
  },
}

SCSS

$custom: #1f109f;
$custom-light: #7556bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f109f",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 159
  },
  "hsl": {
    "h": 246.294,
    "s": 81.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.33956,
    "c": 0.20571,
    "h": 271.5
  },
  "luminance": 0.03165
}

Semantic roles & 50–950 ramp

primary

#1F109F

secondary

#BCCB40

accent

#F830E3

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0312

muted

#7C7881

Preview Lab

Preview with #1F109F

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

Preview Lab → · Contrast checker → · Palette generator →