#1F147F#1F147F

#1F147F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.3% C 0.166 H 274.7°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F147F
RGB	rgb(31, 20, 127)
HSL	hsl(246, 73%, 29%)
HSV	hsv(246, 84%, 50%)
CMYK	cmyk(75.6%, 84.3%, 0%, 50.2%)
CIE-LAB	lab(17.10, 40.12, -57.14)
CIE-LCH	lch(17.10, 69.82, 305.07°)
OKLab	oklab(30.32% 0.0135 -0.1652)
OKLCH	oklch(30.32% 0.166 274.7)
XYZ	xyz(4.6447, 2.3235, 20.2782)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F147F #747F14

analogous

#143F7F #1F147F #55147F

triadic

#1F147F #7F1F14 #147F1F

tetradic

#1F147F #7F143F #747F14 #147F55

square

#1F147F #7F143F #747F14 #147F55

split-complementary

#1F147F #7F5514 #3F7F14

monochromatic

#06041A #120C4A #1F147F #2C1CB4 #412FDE

Accessibility & contrast

On white

14.34

#1F147F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F147F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F147F

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F147F	#FFFFFF	#000000	##FFFFFF
##1F147F	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F82

Deuteranopia (green-blind)

#00257D

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f147f;
/* rgb */ color: rgb(31, 20, 127);
/* oklch */ color: oklch(30.3% 0.166 274.7);

Tailwind

colors: {
  custom: {
    50: '#6c55a5',
    500: '#1f147f',
    950: '#000000',
  },
}

SCSS

$custom: #1f147f;
$custom-light: #6c55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f147f",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 127
  },
  "hsl": {
    "h": 246.168,
    "s": 72.789,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30317,
    "c": 0.16579,
    "h": 274.7
  },
  "luminance": 0.02324
}

Semantic roles & 50–950 ramp

primary

#1F147F

secondary

#A8B43B

accent

#EF38DD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F147F

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

Preview Lab → · Contrast checker → · Palette generator →