#1F1F92#1F1F92

#1F1F92 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.0% C 0.180 H 271.6°. Best body text is #FFFFFF at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#1F1F92
RGB	rgb(31, 31, 146)
HSL	hsl(240, 65%, 35%)
HSV	hsv(240, 79%, 57%)
CMYK	cmyk(78.8%, 78.8%, 0%, 42.7%)
CIE-LAB	lab(21.38, 40.61, -61.98)
CIE-LCH	lch(21.38, 74.10, 303.23°)
OKLab	oklab(33.97% 0.0049 -0.1794)
OKLCH	oklch(33.97% 0.18 271.6)
XYZ	xyz(6.2416, 3.3459, 27.5054)
Luminance	0.0335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1F92 #92921F

analogous

#1F5992 #1F1F92 #591F92

triadic

#1F1F92 #921F1F #1F921F

tetradic

#1F1F92 #921F59 #92921F #1F9259

square

#1F1F92 #921F59 #92921F #1F9259

split-complementary

#1F1F92 #92591F #59921F

monochromatic

#0A0A2D #141460 #1F1F92 #2A2AC4 #5151DA

Accessibility & contrast

On white

12.58

#1F1F92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1F1F92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1F92

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1F92	#FFFFFF	#000000	##FFFFFF
##1F1F92	1.00	12.58	1.67	12.58
#FFFFFF	12.58	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003995

Deuteranopia (green-blind)

#002D90

Tritanopia (blue-blind)

#004258

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f1f92;
/* rgb */ color: rgb(31, 31, 146);
/* oklch */ color: oklch(34.0% 0.180 271.6);

Tailwind

colors: {
  custom: {
    50: '#705db3',
    500: '#1f1f92',
    950: '#000000',
  },
}

SCSS

$custom: #1f1f92;
$custom-light: #705db3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1f92",
  "rgb": {
    "r": 31,
    "g": 31,
    "b": 146
  },
  "hsl": {
    "h": 240,
    "s": 64.972,
    "l": 34.706
  },
  "oklch": {
    "l": 0.33967,
    "c": 0.17951,
    "h": 271.6
  },
  "luminance": 0.03347
}

Semantic roles & 50–950 ramp

primary

#1F1F92

secondary

#BDBD50

accent

#E840E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1F1F92

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

Preview Lab → · Contrast checker → · Palette generator →