#1F1081#1F1081

#1F1081 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 30.1% C 0.171 H 274.8°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F1081
RGB	rgb(31, 16, 129)
HSL	hsl(248, 78%, 28%)
HSV	hsv(248, 88%, 51%)
CMYK	cmyk(76%, 87.6%, 0%, 49.4%)
CIE-LAB	lab(16.73, 42.59, -59.03)
CIE-LCH	lch(16.73, 72.79, 305.81°)
OKLab	oklab(30.14% 0.0142 -0.1706)
OKLCH	oklch(30.14% 0.171 274.8)
XYZ	xyz(4.7115, 2.2464, 20.9499)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1081 #728110

analogous

#103981 #1F1081 #571081

triadic

#1F1081 #811F10 #10811F

tetradic

#1F1081 #811039 #728110 #108157

square

#1F1081 #811039 #728110 #108157

split-complementary

#1F1081 #815710 #398110

monochromatic

#07031B #12094B #1F1081 #2C17B7 #4027E4

Accessibility & contrast

On white

14.49

#1F1081 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F1081 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1081

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1081	#FFFFFF	#000000	##FFFFFF
##1F1081	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E84

Deuteranopia (green-blind)

#00247F

Tritanopia (blue-blind)

#00354B

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1081;
/* rgb */ color: rgb(31, 16, 129);
/* oklch */ color: oklch(30.1% 0.171 274.8);

Tailwind

colors: {
  custom: {
    50: '#6d53a7',
    500: '#1f1081',
    950: '#000000',
  },
}

SCSS

$custom: #1f1081;
$custom-light: #6d53a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1081",
  "rgb": {
    "r": 31,
    "g": 16,
    "b": 129
  },
  "hsl": {
    "h": 247.965,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30135,
    "c": 0.17122,
    "h": 274.8
  },
  "luminance": 0.02247
}

Semantic roles & 50–950 ramp

primary

#1F1081

secondary

#A6B736

accent

#F433DB

background

#F7F5FA

surface

#EDE8F4

border

#C8C4CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1081

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

Preview Lab → · Contrast checker → · Palette generator →