#1F1B94#1F1B94

#1F1B94 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.185 H 271.8°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F1B94
RGB	rgb(31, 27, 148)
HSL	hsl(242, 69%, 34%)
HSV	hsv(242, 82%, 58%)
CMYK	cmyk(79.1%, 81.8%, 0%, 42%)
CIE-LAB	lab(20.88, 43.41, -64.06)
CIE-LCH	lch(20.88, 77.38, 304.12°)
OKLab	oklab(33.68% 0.0058 -0.1854)
OKLCH	oklch(33.68% 0.185 271.8)
XYZ	xyz(6.3005, 3.2126, 28.2993)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1B94 #90941B

analogous

#1B5494 #1F1B94 #5B1B94

triadic

#1F1B94 #941F1B #1B941F

tetradic

#1F1B94 #941B54 #90941B #1B945B

square

#1F1B94 #941B54 #90941B #1B945B

split-complementary

#1F1B94 #945B1B #54941B

monochromatic

#09082C #141260 #1F1B94 #2A24C8 #504BDE

Accessibility & contrast

On white

12.78

#1F1B94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1F1B94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1B94

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1B94	#FFFFFF	#000000	##FFFFFF
##1F1B94	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003897

Deuteranopia (green-blind)

#002C92

Tritanopia (blue-blind)

#004158

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f1b94;
/* rgb */ color: rgb(31, 27, 148);
/* oklch */ color: oklch(33.7% 0.185 271.8);

Tailwind

colors: {
  custom: {
    50: '#715bb5',
    500: '#1f1b94',
    950: '#000000',
  },
}

SCSS

$custom: #1f1b94;
$custom-light: #715bb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1b94",
  "rgb": {
    "r": 31,
    "g": 27,
    "b": 148
  },
  "hsl": {
    "h": 241.983,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.33684,
    "c": 0.18548,
    "h": 271.8
  },
  "luminance": 0.03213
}

Semantic roles & 50–950 ramp

primary

#1F1B94

secondary

#BCC04B

accent

#EC3CE6

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1B94

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

Preview Lab → · Contrast checker → · Palette generator →