#1F54AC#1F54AC

#1F54AC is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.3% C 0.152 H 260.1°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#1F54AC
RGB	rgb(31, 84, 172)
HSL	hsl(217, 69%, 40%)
HSV	hsv(217, 82%, 67%)
CMYK	cmyk(82%, 51.2%, 0%, 32.5%)
CIE-LAB	lab(37.13, 15.96, -51.98)
CIE-LCH	lch(37.13, 54.37, 287.07°)
OKLab	oklab(46.33% -0.0261 -0.1497)
OKLCH	oklch(46.33% 0.152 260.1)
XYZ	xyz(11.1791, 9.6092, 40.2873)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F54AC #AC771F

analogous

#1F9AAC #1F54AC #311FAC

triadic

#1F54AC #AC1F54 #54AC1F

tetradic

#1F54AC #AC1F9A #AC771F #1FAC31

square

#1F54AC #AC1F9A #AC771F #1FAC31

split-complementary

#1F54AC #AC311F #9AAC1F

monochromatic

#0C2144 #163B78 #1F54AC #2F6FD9 #6393E3

Accessibility & contrast

On white

7.19

#1F54AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#1F54AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F54AC

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F54AC	#FFFFFF	#000000	##FFFFFF
##1F54AC	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5EAF

Deuteranopia (green-blind)

#0051AA

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1f54ac;
/* rgb */ color: rgb(31, 84, 172);
/* oklch */ color: oklch(46.3% 0.152 260.1);

Tailwind

colors: {
  custom: {
    50: '#7383c5',
    500: '#1f54ac',
    950: '#000000',
  },
}

SCSS

$custom: #1f54ac;
$custom-light: #7383c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1f54ac",
  "rgb": {
    "r": 31,
    "g": 84,
    "b": 172
  },
  "hsl": {
    "h": 217.447,
    "s": 69.458,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46326,
    "c": 0.15194,
    "h": 260.1
  },
  "luminance": 0.09611
}

Semantic roles & 50–950 ramp

primary

#1F54AC

secondary

#C8A05F

accent

#AA3CEC

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #1F54AC

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

Preview Lab → · Contrast checker → · Palette generator →