#1F1E91#1F1E91

#1F1E91 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.7% C 0.179 H 271.7°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#1F1E91
RGB	rgb(31, 30, 145)
HSL	hsl(241, 66%, 34%)
HSV	hsv(241, 79%, 57%)
CMYK	cmyk(78.6%, 79.3%, 0%, 43.1%)
CIE-LAB	lab(21.07, 40.82, -61.88)
CIE-LCH	lch(21.07, 74.13, 303.42°)
OKLab	oklab(33.72% 0.0055 -0.1791)
OKLCH	oklch(33.72% 0.179 271.7)
XYZ	xyz(6.1385, 3.2635, 27.0890)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1E91 #90911E

analogous

#1E5791 #1F1E91 #591E91

triadic

#1F1E91 #911F1E #1E911F

tetradic

#1F1E91 #911E57 #90911E #1E9159

square

#1F1E91 #911E57 #90911E #1E9159

split-complementary

#1F1E91 #91591E #57911E

monochromatic

#09092C #14145E #1F1E91 #2A28C4 #504FDB

Accessibility & contrast

On white

12.71

#1F1E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F1E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1E91

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1E91	#FFFFFF	#000000	##FFFFFF
##1F1E91	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003894

Deuteranopia (green-blind)

#002D8F

Tritanopia (blue-blind)

#004157

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f1e91;
/* rgb */ color: rgb(31, 30, 145);
/* oklch */ color: oklch(33.7% 0.179 271.7);

Tailwind

colors: {
  custom: {
    50: '#705cb3',
    500: '#1f1e91',
    950: '#000000',
  },
}

SCSS

$custom: #1f1e91;
$custom-light: #705cb3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1e91",
  "rgb": {
    "r": 31,
    "g": 30,
    "b": 145
  },
  "hsl": {
    "h": 240.522,
    "s": 65.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.33715,
    "c": 0.1792,
    "h": 271.7
  },
  "luminance": 0.03264
}

Semantic roles & 50–950 ramp

primary

#1F1E91

secondary

#BCBD4D

accent

#E93FE7

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1E91

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

Preview Lab → · Contrast checker → · Palette generator →