#437FFF#437FFF

#437FFF is a light, highly saturated blue. Relative luminance 0.236; OKLCH L 62.6% C 0.201 H 263.0°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#437FFF
RGB	rgb(67, 127, 255)
HSL	hsl(221, 100%, 63%)
HSV	hsv(221, 74%, 100%)
CMYK	cmyk(73.7%, 50.2%, 0%, 0%)
CIE-LAB	lab(55.67, 23.55, -69.31)
CIE-LCH	lch(55.67, 73.20, 288.76°)
OKLab	oklab(62.6% -0.0244 -0.1994)
OKLCH	oklch(62.6% 0.201 263)
XYZ	xyz(27.9477, 23.5889, 97.6685)
Luminance	0.2359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FFF #FFC343

analogous

#43DDFF #437FFF #6543FF

triadic

#437FFF #FF437F #7FFF43

tetradic

#437FFF #FF43DD #FFC343 #43FF65

square

#437FFF #FF43DD #FFC343 #43FF65

split-complementary

#437FFF #FF6543 #DDFF43

monochromatic

#0040C8 #0655FF #437FFF #80A9FF #BDD2FF

Accessibility & contrast

On white

3.67

#437FFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#437FFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FFF

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FFF	#FFFFFF	#000000	##000000
##437FFF	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E8EFF

Deuteranopia (green-blind)

#007DFC

Tritanopia (blue-blind)

#009EB3

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #437fff;
/* rgb */ color: rgb(67, 127, 255);
/* oklch */ color: oklch(62.6% 0.201 263.0);

Tailwind

colors: {
  custom: {
    50: '#8fa3ff',
    500: '#437fff',
    950: '#000000',
  },
}

SCSS

$custom: #437fff;
$custom-light: #8fa3ff;
$custom-dark: #000000;

JSON

{
  "hex": "#437fff",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 255
  },
  "hsl": {
    "h": 220.851,
    "s": 100,
    "l": 63.137
  },
  "oklch": {
    "l": 0.626,
    "c": 0.20086,
    "h": 263
  },
  "luminance": 0.23592
}

Semantic roles & 50–950 ramp

primary

#437FFF

secondary

#F1DBAD

accent

#9C00E6

background

#F9FAFF

surface

#F2F3FF

border

#CCCDD7

text

#0E0F18

muted

#7E7F86

Preview Lab

Preview with #437FFF

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

Preview Lab → · Contrast checker → · Palette generator →