#1F147B#1F147B

#1F147B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.8% C 0.161 H 275.2°. Best body text is #FFFFFF at 14.54:1 contrast (WCAG AA passes).

Color values

HEX	#1F147B
RGB	rgb(31, 20, 123)
HSL	hsl(246, 72%, 28%)
HSV	hsv(246, 84%, 48%)
CMYK	cmyk(74.8%, 83.7%, 0%, 51.8%)
CIE-LAB	lab(16.61, 38.83, -55.41)
CIE-LCH	lch(16.61, 67.66, 305.03°)
OKLab	oklab(29.83% 0.0147 -0.1602)
OKLCH	oklch(29.83% 0.161 275.2)
XYZ	xyz(4.3892, 2.2212, 18.9325)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F147B #707B14

analogous

#143C7B #1F147B #52147B

triadic

#1F147B #7B1F14 #147B1F

tetradic

#1F147B #7B143C #707B14 #147B52

square

#1F147B #7B143C #707B14 #147B52

split-complementary

#1F147B #7B5214 #3C7B14

monochromatic

#07041A #120B46 #1F147B #2C1DB0 #3F2DDD

Accessibility & contrast

On white

14.54

#1F147B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1F147B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F147B

14.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F147B	#FFFFFF	#000000	##FFFFFF
##1F147B	1.00	14.54	1.44	14.54
#FFFFFF	14.54	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f147b;
/* rgb */ color: rgb(31, 20, 123);
/* oklch */ color: oklch(29.8% 0.161 275.2);

Tailwind

colors: {
  custom: {
    50: '#6b55a2',
    500: '#1f147b',
    950: '#000000',
  },
}

SCSS

$custom: #1f147b;
$custom-light: #6b55a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f147b",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 123
  },
  "hsl": {
    "h": 246.408,
    "s": 72.028,
    "l": 28.039
  },
  "oklch": {
    "l": 0.29833,
    "c": 0.16087,
    "h": 275.2
  },
  "luminance": 0.02222
}

Semantic roles & 50–950 ramp

primary

#1F147B

secondary

#A4B13A

accent

#EF39DB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F147B

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

Preview Lab → · Contrast checker → · Palette generator →