#437FE5#437FE5

#437FE5 is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.8% C 0.167 H 260.3°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#437FE5
RGB	rgb(67, 127, 229)
HSL	hsl(218, 76%, 58%)
HSV	hsv(218, 71%, 90%)
CMYK	cmyk(70.7%, 44.5%, 0%, 10.2%)
CIE-LAB	lab(54.06, 14.25, -57.48)
CIE-LCH	lch(54.06, 59.22, 283.93°)
OKLab	oklab(60.84% -0.0281 -0.1646)
OKLCH	oklch(60.84% 0.167 260.3)
XYZ	xyz(24.0419, 22.0266, 77.0981)
Luminance	0.2203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FE5 #E5A943

analogous

#43D0E5 #437FE5 #5843E5

triadic

#437FE5 #E5437F #7FE543

tetradic

#437FE5 #E543D0 #E5A943 #43E558

square

#437FE5 #E543D0 #E5A943 #43E558

split-complementary

#437FE5 #E55843 #D0E543

monochromatic

#154699 #1D5ECE #437FE5 #79A4EC #AFC8F4

Accessibility & contrast

On white

3.88

#437FE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#437FE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FE5

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FE5	#FFFFFF	#000000	##000000
##437FE5	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C89E9

Deuteranopia (green-blind)

#2B7AE3

Tritanopia (blue-blind)

#0097A7

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #437fe5;
/* rgb */ color: rgb(67, 127, 229);
/* oklch */ color: oklch(60.8% 0.167 260.3);

Tailwind

colors: {
  custom: {
    50: '#8aa3ee',
    500: '#437fe5',
    950: '#000000',
  },
}

SCSS

$custom: #437fe5;
$custom-light: #8aa3ee;
$custom-dark: #000000;

JSON

{
  "hex": "#437fe5",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 229
  },
  "hsl": {
    "h": 217.778,
    "s": 75.701,
    "l": 58.039
  },
  "oklch": {
    "l": 0.60841,
    "c": 0.16694,
    "h": 260.3
  },
  "luminance": 0.22029
}

Semantic roles & 50–950 ramp

primary

#437FE5

secondary

#E2CAA2

accent

#AC36F2

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #437FE5

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

Preview Lab → · Contrast checker → · Palette generator →