#437CFF#437CFF

#437CFF is a light, highly saturated blue. Relative luminance 0.228; OKLCH L 62.0% C 0.204 H 263.8°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#437CFF
RGB	rgb(67, 124, 255)
HSL	hsl(222, 100%, 63%)
HSV	hsv(222, 74%, 100%)
CMYK	cmyk(73.7%, 51.4%, 0%, 0%)
CIE-LAB	lab(54.89, 25.40, -70.57)
CIE-LCH	lch(54.89, 75.00, 289.79°)
OKLab	oklab(62.01% -0.0222 -0.2031)
OKLCH	oklch(62.01% 0.204 263.8)
XYZ	xyz(27.5660, 22.8255, 97.5413)
Luminance	0.2283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CFF #FFC643

analogous

#43DAFF #437CFF #6843FF

triadic

#437CFF #FF437C #7CFF43

tetradic

#437CFF #FF43DA #FFC643 #43FF68

square

#437CFF #FF43DA #FFC643 #43FF68

split-complementary

#437CFF #FF6843 #DAFF43

monochromatic

#003DC8 #0651FF #437CFF #80A7FF #BDD1FF

Accessibility & contrast

On white

3.77

#437CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#437CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CFF

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CFF	#FFFFFF	#000000	##000000
##437CFF	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#228CFF

Deuteranopia (green-blind)

#007BFC

Tritanopia (blue-blind)

#009CB2

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #437cff;
/* rgb */ color: rgb(67, 124, 255);
/* oklch */ color: oklch(62.0% 0.204 263.8);

Tailwind

colors: {
  custom: {
    50: '#8fa1ff',
    500: '#437cff',
    950: '#000000',
  },
}

SCSS

$custom: #437cff;
$custom-light: #8fa1ff;
$custom-dark: #000000;

JSON

{
  "hex": "#437cff",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 255
  },
  "hsl": {
    "h": 221.809,
    "s": 100,
    "l": 63.137
  },
  "oklch": {
    "l": 0.62005,
    "c": 0.20435,
    "h": 263.8
  },
  "luminance": 0.22829
}

Semantic roles & 50–950 ramp

primary

#437CFF

secondary

#F1DCAD

accent

#A000E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E18

muted

#7E7E86

Preview Lab

Preview with #437CFF

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

Preview Lab → · Contrast checker → · Palette generator →