#1F1D96#1F1D96

#1F1D96 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.186 H 271.4°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F1D96
RGB	rgb(31, 29, 150)
HSL	hsl(241, 68%, 35%)
HSV	hsv(241, 81%, 59%)
CMYK	cmyk(79.3%, 80.7%, 0%, 41.2%)
CIE-LAB	lab(21.47, 43.03, -64.30)
CIE-LCH	lch(21.47, 77.37, 303.79°)
OKLab	oklab(34.17% 0.0047 -0.1861)
OKLCH	oklch(34.17% 0.186 271.4)
XYZ	xyz(6.5076, 3.3713, 29.1560)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1D96 #94961D

analogous

#1D5796 #1F1D96 #5C1D96

triadic

#1F1D96 #961F1D #1D961F

tetradic

#1F1D96 #961D57 #94961D #1D965C

square

#1F1D96 #961D57 #94961D #1D965C

split-complementary

#1F1D96 #965C1D #57961D

monochromatic

#0A092F #141363 #1F1D96 #2A27C9 #5350DD

Accessibility & contrast

On white

12.54

#1F1D96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F1D96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1D96

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1D96	#FFFFFF	#000000	##FFFFFF
##1F1D96	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003999

Deuteranopia (green-blind)

#002D94

Tritanopia (blue-blind)

#00435A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f1d96;
/* rgb */ color: rgb(31, 29, 150);
/* oklch */ color: oklch(34.2% 0.186 271.4);

Tailwind

colors: {
  custom: {
    50: '#725cb6',
    500: '#1f1d96',
    950: '#000000',
  },
}

SCSS

$custom: #1f1d96;
$custom-light: #725cb6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1d96",
  "rgb": {
    "r": 31,
    "g": 29,
    "b": 150
  },
  "hsl": {
    "h": 240.992,
    "s": 67.598,
    "l": 35.098
  },
  "oklch": {
    "l": 0.3417,
    "c": 0.1862,
    "h": 271.4
  },
  "luminance": 0.03372
}

Semantic roles & 50–950 ramp

primary

#1F1D96

secondary

#BEC04F

accent

#EA3DE8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1D96

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

Preview Lab → · Contrast checker → · Palette generator →