#1F1A72#1F1A72

#1F1A72 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.144 H 275.6°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F1A72
RGB	rgb(31, 26, 114)
HSL	hsl(243, 63%, 27%)
HSV	hsv(243, 77%, 45%)
CMYK	cmyk(72.8%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(16.72, 32.45, -49.43)
CIE-LCH	lch(16.72, 59.13, 303.28°)
OKLab	oklab(29.6% 0.014 -0.1429)
OKLCH	oklch(29.6% 0.144 275.6)
XYZ	xyz(3.9707, 2.2446, 16.1403)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1A72 #6D721A

analogous

#1A4172 #1F1A72 #4B1A72

triadic

#1F1A72 #721F1A #1A721F

tetradic

#1F1A72 #721A41 #6D721A #1A724B

square

#1F1A72 #721A41 #6D721A #1A724B

split-complementary

#1F1A72 #724B1A #41721A

monochromatic

#070619 #110F40 #1F1A72 #2D25A4 #3E35D1

Accessibility & contrast

On white

14.49

#1F1A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F1A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1A72

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1A72	#FFFFFF	#000000	##FFFFFF
##1F1A72	1.00	14.49	1.45	14.49
#FFFFFF	14.49	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D75

Deuteranopia (green-blind)

#002570

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1a72;
/* rgb */ color: rgb(31, 26, 114);
/* oklch */ color: oklch(29.6% 0.144 275.6);

Tailwind

colors: {
  custom: {
    50: '#69589c',
    500: '#1f1a72',
    950: '#000000',
  },
}

SCSS

$custom: #1f1a72;
$custom-light: #69589c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1a72",
  "rgb": {
    "r": 31,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 243.409,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29603,
    "c": 0.14357,
    "h": 275.6
  },
  "luminance": 0.02245
}

Semantic roles & 50–950 ramp

primary

#1F1A72

secondary

#A1A741

accent

#E642DD

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1A72

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

Preview Lab → · Contrast checker → · Palette generator →