#1F1F96#1F1F96

#1F1F96 is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.4% C 0.184 H 271.3°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F1F96
RGB	rgb(31, 31, 150)
HSL	hsl(240, 66%, 35%)
HSV	hsv(240, 79%, 59%)
CMYK	cmyk(79.3%, 79.3%, 0%, 41.2%)
CIE-LAB	lab(21.85, 41.95, -63.68)
CIE-LCH	lch(21.85, 76.26, 303.38°)
OKLab	oklab(34.43% 0.0041 -0.1844)
OKLCH	oklch(34.43% 0.184 271.3)
XYZ	xyz(6.5582, 3.4726, 29.1729)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1F96 #96961F

analogous

#1F5A96 #1F1F96 #5A1F96

triadic

#1F1F96 #961F1F #1F961F

tetradic

#1F1F96 #961F5A #96961F #1F965A

square

#1F1F96 #961F5A #96961F #1F965A

split-complementary

#1F1F96 #965A1F #5A961F

monochromatic

#0A0A31 #151563 #1F1F96 #2929C9 #5454DC

Accessibility & contrast

On white

12.39

#1F1F96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F1F96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1F96

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1F96	#FFFFFF	#000000	##FFFFFF
##1F1F96	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A99

Deuteranopia (green-blind)

#002E94

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f1f96;
/* rgb */ color: rgb(31, 31, 150);
/* oklch */ color: oklch(34.4% 0.184 271.3);

Tailwind

colors: {
  custom: {
    50: '#715db6',
    500: '#1f1f96',
    950: '#000000',
  },
}

SCSS

$custom: #1f1f96;
$custom-light: #715db6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1f96",
  "rgb": {
    "r": 31,
    "g": 31,
    "b": 150
  },
  "hsl": {
    "h": 240,
    "s": 65.746,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34431,
    "c": 0.18442,
    "h": 271.3
  },
  "luminance": 0.03473
}

Semantic roles & 50–950 ramp

primary

#1F1F96

secondary

#BFBF52

accent

#E93FE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1F96

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

Preview Lab → · Contrast checker → · Palette generator →