#1F4EAE#1F4EAE

#1F4EAE is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.2% C 0.162 H 262.3°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1F4EAE
RGB	rgb(31, 78, 174)
HSL	hsl(220, 70%, 40%)
HSV	hsv(220, 82%, 68%)
CMYK	cmyk(82.2%, 55.2%, 0%, 31.8%)
CIE-LAB	lab(35.59, 20.77, -55.67)
CIE-LCH	lch(35.59, 59.41, 290.46°)
OKLab	oklab(45.2% -0.0216 -0.1607)
OKLCH	oklch(45.2% 0.162 262.3)
XYZ	xyz(10.9267, 8.7948, 41.1579)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4EAE #AE7F1F

analogous

#1F95AE #1F4EAE #381FAE

triadic

#1F4EAE #AE1F4E #4EAE1F

tetradic

#1F4EAE #AE1F95 #AE7F1F #1FAE38

square

#1F4EAE #AE1F95 #AE7F1F #1FAE38

split-complementary

#1F4EAE #AE381F #95AE1F

monochromatic

#0C1F46 #16377A #1F4EAE #3068DA #648EE3

Accessibility & contrast

On white

7.61

#1F4EAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1F4EAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4EAE

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4EAE	#FFFFFF	#000000	##FFFFFF
##1F4EAE	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB1

Deuteranopia (green-blind)

#004DAC

Tritanopia (blue-blind)

#006676

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1f4eae;
/* rgb */ color: rgb(31, 78, 174);
/* oklch */ color: oklch(45.2% 0.162 262.3);

Tailwind

colors: {
  custom: {
    50: '#747ec7',
    500: '#1f4eae',
    950: '#000000',
  },
}

SCSS

$custom: #1f4eae;
$custom-light: #747ec7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4eae",
  "rgb": {
    "r": 31,
    "g": 78,
    "b": 174
  },
  "hsl": {
    "h": 220.28,
    "s": 69.756,
    "l": 40.196
  },
  "oklch": {
    "l": 0.45196,
    "c": 0.16211,
    "h": 262.3
  },
  "luminance": 0.08796
}

Semantic roles & 50–950 ramp

primary

#1F4EAE

secondary

#C8A660

accent

#B23BED

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #1F4EAE

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

Preview Lab → · Contrast checker → · Palette generator →