#437AFF#437AFF

#437AFF is a mid, highly saturated blue. Relative luminance 0.223; OKLCH L 61.6% C 0.207 H 264.2°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#437AFF
RGB	rgb(67, 122, 255)
HSL	hsl(222, 100%, 63%)
HSV	hsv(222, 74%, 100%)
CMYK	cmyk(73.7%, 52.2%, 0%, 0%)
CIE-LAB	lab(54.37, 26.63, -71.41)
CIE-LCH	lch(54.37, 76.21, 290.45°)
OKLab	oklab(61.61% -0.0207 -0.2056)
OKLCH	oklch(61.61% 0.207 264.2)
XYZ	xyz(27.3179, 22.3293, 97.4586)
Luminance	0.2233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437AFF #FFC843

analogous

#43D8FF #437AFF #6A43FF

triadic

#437AFF #FF437A #7AFF43

tetradic

#437AFF #FF43D8 #FFC843 #43FF6A

square

#437AFF #FF43D8 #FFC843 #43FF6A

split-complementary

#437AFF #FF6A43 #D8FF43

monochromatic

#003AC8 #064FFF #437AFF #80A5FF #BDD1FF

Accessibility & contrast

On white

3.84

#437AFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#437AFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437AFF

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437AFF	#FFFFFF	#000000	##000000
##437AFF	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#178BFF

Deuteranopia (green-blind)

#007AFC

Tritanopia (blue-blind)

#009AB1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #437aff;
/* rgb */ color: rgb(67, 122, 255);
/* oklch */ color: oklch(61.6% 0.207 264.2);

Tailwind

colors: {
  custom: {
    50: '#8f9fff',
    500: '#437aff',
    950: '#000000',
  },
}

SCSS

$custom: #437aff;
$custom-light: #8f9fff;
$custom-dark: #000000;

JSON

{
  "hex": "#437aff",
  "rgb": {
    "r": 67,
    "g": 122,
    "b": 255
  },
  "hsl": {
    "h": 222.447,
    "s": 100,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61612,
    "c": 0.20668,
    "h": 264.2
  },
  "luminance": 0.22332
}

Semantic roles & 50–950 ramp

primary

#437AFF

secondary

#F1DDAD

accent

#A200E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #437AFF

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

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