#1F499A#1F499A

#1F499A is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.5% C 0.141 H 261.8°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1F499A
RGB	rgb(31, 73, 154)
HSL	hsl(220, 66%, 36%)
HSV	hsv(220, 80%, 60%)
CMYK	cmyk(79.9%, 52.6%, 0%, 39.6%)
CIE-LAB	lab(32.68, 16.20, -48.39)
CIE-LCH	lch(32.68, 51.03, 288.51°)
OKLab	oklab(42.51% -0.02 -0.1394)
OKLCH	oklch(42.51% 0.141 261.8)
XYZ	xyz(8.7783, 7.3885, 31.5291)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F499A #9A701F

analogous

#1F879A #1F499A #331F9A

triadic

#1F499A #9A1F49 #499A1F

tetradic

#1F499A #9A1F87 #9A701F #1F9A33

square

#1F499A #9A1F87 #9A701F #1F9A33

split-complementary

#1F499A #9A331F #879A1F

monochromatic

#0A1934 #153167 #1F499A #2961CD #5684DD

Accessibility & contrast

On white

8.48

#1F499A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1F499A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F499A

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F499A	#FFFFFF	#000000	##FFFFFF
##1F499A	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#12539D

Deuteranopia (green-blind)

#004898

Tritanopia (blue-blind)

#005D6A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f499a;
/* rgb */ color: rgb(31, 73, 154);
/* oklch */ color: oklch(42.5% 0.141 261.8);

Tailwind

colors: {
  custom: {
    50: '#6f7bb8',
    500: '#1f499a',
    950: '#000000',
  },
}

SCSS

$custom: #1f499a;
$custom-light: #6f7bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f499a",
  "rgb": {
    "r": 31,
    "g": 73,
    "b": 154
  },
  "hsl": {
    "h": 219.512,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42512,
    "c": 0.1408,
    "h": 261.8
  },
  "luminance": 0.07389
}

Semantic roles & 50–950 ramp

primary

#1F499A

secondary

#C19C54

accent

#AF3EE9

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1F499A

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

Preview Lab → · Contrast checker → · Palette generator →