#1F1C8A#1F1C8A

#1F1C8A is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.172 H 272.6°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#1F1C8A
RGB	rgb(31, 28, 138)
HSL	hsl(242, 66%, 33%)
HSV	hsv(242, 80%, 54%)
CMYK	cmyk(77.5%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(19.87, 39.57, -59.50)
CIE-LCH	lch(19.87, 71.46, 303.62°)
OKLab	oklab(32.63% 0.0077 -0.1722)
OKLCH	oklch(32.63% 0.172 272.6)
XYZ	xyz(5.5662, 2.9562, 24.3171)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1C8A #878A1C

analogous

#1C508A #1F1C8A #561C8A

triadic

#1F1C8A #8A1F1C #1C8A1F

tetradic

#1F1C8A #8A1C50 #878A1C #1C8A56

square

#1F1C8A #8A1C50 #878A1C #1C8A56

split-complementary

#1F1C8A #8A561C #508A1C

monochromatic

#080724 #141257 #1F1C8A #2A26BD #4B47DA

Accessibility & contrast

On white

13.20

#1F1C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1F1C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1C8A

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1C8A	#FFFFFF	#000000	##FFFFFF
##1F1C8A	1.00	13.20	1.59	13.20
#FFFFFF	13.20	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358D

Deuteranopia (green-blind)

#002B88

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f1c8a;
/* rgb */ color: rgb(31, 28, 138);
/* oklch */ color: oklch(32.6% 0.172 272.6);

Tailwind

colors: {
  custom: {
    50: '#6f5aad',
    500: '#1f1c8a',
    950: '#000000',
  },
}

SCSS

$custom: #1f1c8a;
$custom-light: #6f5aad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1c8a",
  "rgb": {
    "r": 31,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 241.636,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32632,
    "c": 0.17237,
    "h": 272.6
  },
  "luminance": 0.02957
}

Semantic roles & 50–950 ramp

primary

#1F1C8A

secondary

#B8BB46

accent

#E93FE5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #1F1C8A

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

Preview Lab → · Contrast checker → · Palette generator →