#1F147C#1F147C

#1F147C is a dark, vivid blue. Relative luminance 0.022; OKLCH L 30.0% C 0.162 H 275.1°. Best body text is #FFFFFF at 14.49:1 contrast (WCAG AA passes).

Color values

HEX	#1F147C
RGB	rgb(31, 20, 124)
HSL	hsl(246, 72%, 28%)
HSV	hsv(246, 84%, 49%)
CMYK	cmyk(75%, 83.9%, 0%, 51.4%)
CIE-LAB	lab(16.73, 39.16, -55.84)
CIE-LCH	lch(16.73, 68.21, 305.04°)
OKLab	oklab(29.95% 0.0144 -0.1615)
OKLCH	oklch(29.95% 0.162 275.1)
XYZ	xyz(4.4521, 2.2464, 19.2638)
Luminance	0.0225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F147C #717C14

analogous

#143D7C #1F147C #53147C

triadic

#1F147C #7C1F14 #147C1F

tetradic

#1F147C #7C143D #717C14 #147C53

square

#1F147C #7C143D #717C14 #147C53

split-complementary

#1F147C #7C5314 #3D7C14

monochromatic

#07041A #120B47 #1F147C #2C1DB1 #402DDD

Accessibility & contrast

On white

14.49

#1F147C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1F147C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F147C

14.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F147C	#FFFFFF	#000000	##FFFFFF
##1F147C	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)

#002E7F

Deuteranopia (green-blind)

#00257A

Tritanopia (blue-blind)

#003549

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f147c;
/* rgb */ color: rgb(31, 20, 124);
/* oklch */ color: oklch(30.0% 0.162 275.1);

Tailwind

colors: {
  custom: {
    50: '#6c55a3',
    500: '#1f147c',
    950: '#000000',
  },
}

SCSS

$custom: #1f147c;
$custom-light: #6c55a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f147c",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 124
  },
  "hsl": {
    "h": 246.346,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29954,
    "c": 0.16211,
    "h": 275.1
  },
  "luminance": 0.02247
}

Semantic roles & 50–950 ramp

primary

#1F147C

secondary

#A5B23A

accent

#EF39DC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F147C

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

Preview Lab → · Contrast checker → · Palette generator →