#437DF4#437DF4

#437DF4 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.4% C 0.189 H 262.6°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#437DF4
RGB	rgb(67, 125, 244)
HSL	hsl(220, 89%, 61%)
HSV	hsv(220, 73%, 96%)
CMYK	cmyk(72.5%, 48.8%, 0%, 4.3%)
CIE-LAB	lab(54.44, 20.85, -65.22)
CIE-LCH	lch(54.44, 68.47, 287.73°)
OKLab	oklab(61.43% -0.0242 -0.1874)
OKLCH	oklch(61.43% 0.189 262.6)
XYZ	xyz(25.9717, 22.3893, 88.5232)
Luminance	0.2239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DF4 #F4BA43

analogous

#43D5F4 #437DF4 #6143F4

triadic

#437DF4 #F4437D #7DF443

tetradic

#437DF4 #F443D5 #F4BA43 #43F461

square

#437DF4 #F443D5 #F4BA43 #43F461

split-complementary

#437DF4 #F46143 #D5F443

monochromatic

#0A41B2 #0E57EC #437DF4 #7DA5F7 #B7CDFB

Accessibility & contrast

On white

3.83

#437DF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#437DF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DF4

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DF4	#FFFFFF	#000000	##000000
##437DF4	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#388BF8

Deuteranopia (green-blind)

#007BF2

Tritanopia (blue-blind)

#0099AD

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #437df4;
/* rgb */ color: rgb(67, 125, 244);
/* oklch */ color: oklch(61.4% 0.189 262.6);

Tailwind

colors: {
  custom: {
    50: '#8da2f8',
    500: '#437df4',
    950: '#000000',
  },
}

SCSS

$custom: #437df4;
$custom-light: #8da2f8;
$custom-dark: #000000;

JSON

{
  "hex": "#437df4",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 244
  },
  "hsl": {
    "h": 220.339,
    "s": 88.945,
    "l": 60.98
  },
  "oklch": {
    "l": 0.6143,
    "c": 0.18893,
    "h": 262.6
  },
  "luminance": 0.22392
}

Semantic roles & 50–950 ramp

primary

#437DF4

secondary

#EBD5A8

accent

#9A00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #437DF4

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

Preview Lab → · Contrast checker → · Palette generator →