#1F1083#1F1083

#1F1083 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.4% C 0.174 H 274.5°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F1083
RGB	rgb(31, 16, 131)
HSL	hsl(248, 78%, 29%)
HSV	hsv(248, 88%, 51%)
CMYK	cmyk(76.3%, 87.8%, 0%, 48.6%)
CIE-LAB	lab(16.99, 43.20, -59.87)
CIE-LCH	lch(16.99, 73.83, 305.82°)
OKLab	oklab(30.39% 0.0136 -0.173)
OKLCH	oklch(30.39% 0.174 274.5)
XYZ	xyz(4.8457, 2.3001, 21.6569)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1083 #748310

analogous

#103B83 #1F1083 #591083

triadic

#1F1083 #831F10 #10831F

tetradic

#1F1083 #83103B #748310 #108359

square

#1F1083 #83103B #748310 #108359

split-complementary

#1F1083 #835910 #3B8310

monochromatic

#06031B #12094C #1F1083 #2C17BA #4129E5

Accessibility & contrast

On white

14.38

#1F1083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F1083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1083

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1083	#FFFFFF	#000000	##FFFFFF
##1F1083	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F86

Deuteranopia (green-blind)

#002581

Tritanopia (blue-blind)

#00364C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f1083;
/* rgb */ color: rgb(31, 16, 131);
/* oklch */ color: oklch(30.4% 0.174 274.5);

Tailwind

colors: {
  custom: {
    50: '#6e54a8',
    500: '#1f1083',
    950: '#000000',
  },
}

SCSS

$custom: #1f1083;
$custom-light: #6e54a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1083",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 131
  },
  "hsl": {
    "h": 247.826,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30387,
    "c": 0.17358,
    "h": 274.5
  },
  "luminance": 0.02301
}

Semantic roles & 50–950 ramp

primary

#1F1083

secondary

#A8B936

accent

#F533DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1083

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

Preview Lab → · Contrast checker → · Palette generator →