#437CF4#437CF4

#437CF4 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.2% C 0.190 H 262.9°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#437CF4
RGB	rgb(67, 124, 244)
HSL	hsl(221, 89%, 61%)
HSV	hsv(221, 73%, 96%)
CMYK	cmyk(72.5%, 49.2%, 0%, 4.3%)
CIE-LAB	lab(54.17, 21.46, -65.65)
CIE-LCH	lch(54.17, 69.07, 288.11°)
OKLab	oklab(61.23% -0.0234 -0.1887)
OKLCH	oklch(61.23% 0.19 262.9)
XYZ	xyz(25.8457, 22.1374, 88.4812)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CF4 #F4BB43

analogous

#43D4F4 #437CF4 #6243F4

triadic

#437CF4 #F4437C #7CF443

tetradic

#437CF4 #F443D4 #F4BB43 #43F462

square

#437CF4 #F443D4 #F4BB43 #43F462

split-complementary

#437CF4 #F46243 #D4F443

monochromatic

#0A40B2 #0E55EC #437CF4 #7DA4F7 #B7CDFB

Accessibility & contrast

On white

3.87

#437CF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#437CF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CF4

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CF4	#FFFFFF	#000000	##000000
##437CF4	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#358AF8

Deuteranopia (green-blind)

#007AF2

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #437cf4;
/* rgb */ color: rgb(67, 124, 244);
/* oklch */ color: oklch(61.2% 0.190 262.9);

Tailwind

colors: {
  custom: {
    50: '#8da1f8',
    500: '#437cf4',
    950: '#000000',
  },
}

SCSS

$custom: #437cf4;
$custom-light: #8da1f8;
$custom-dark: #000000;

JSON

{
  "hex": "#437cf4",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 244
  },
  "hsl": {
    "h": 220.678,
    "s": 88.945,
    "l": 60.98
  },
  "oklch": {
    "l": 0.61228,
    "c": 0.1901,
    "h": 262.9
  },
  "luminance": 0.2214
}

Semantic roles & 50–950 ramp

primary

#437CF4

secondary

#EBD5A8

accent

#9C00E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #437CF4

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

Preview Lab → · Contrast checker → · Palette generator →