#1F147E#1F147E

#1F147E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.2% C 0.165 H 274.8°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F147E
RGB	rgb(31, 20, 126)
HSL	hsl(246, 73%, 29%)
HSV	hsv(246, 84%, 49%)
CMYK	cmyk(75.4%, 84.1%, 0%, 50.6%)
CIE-LAB	lab(16.98, 39.80, -56.71)
CIE-LCH	lch(16.98, 69.29, 305.06°)
OKLab	oklab(30.2% 0.0138 -0.164)
OKLCH	oklch(30.2% 0.165 274.8)
XYZ	xyz(4.5799, 2.2975, 19.9367)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F147E #737E14

analogous

#143E7E #1F147E #54147E

triadic

#1F147E #7E1F14 #147E1F

tetradic

#1F147E #7E143E #737E14 #147E54

square

#1F147E #7E143E #737E14 #147E54

split-complementary

#1F147E #7E5414 #3E7E14

monochromatic

#06041A #120C49 #1F147E #2C1CB3 #412EDE

Accessibility & contrast

On white

14.39

#1F147E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1F147E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F147E

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F147E	#FFFFFF	#000000	##FFFFFF
##1F147E	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E81

Deuteranopia (green-blind)

#00257C

Tritanopia (blue-blind)

#00354A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1f147e;
/* rgb */ color: rgb(31, 20, 126);
/* oklch */ color: oklch(30.2% 0.165 274.8);

Tailwind

colors: {
  custom: {
    50: '#6c55a5',
    500: '#1f147e',
    950: '#000000',
  },
}

SCSS

$custom: #1f147e;
$custom-light: #6c55a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f147e",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 126
  },
  "hsl": {
    "h": 246.226,
    "s": 72.603,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30196,
    "c": 0.16457,
    "h": 274.8
  },
  "luminance": 0.02298
}

Semantic roles & 50–950 ramp

primary

#1F147E

secondary

#A7B33A

accent

#EF38DC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F147E

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

Preview Lab → · Contrast checker → · Palette generator →