#437FE0#437FE0

#437FE0 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.5% C 0.160 H 259.6°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#437FE0
RGB	rgb(67, 127, 224)
HSL	hsl(217, 72%, 57%)
HSV	hsv(217, 70%, 88%)
CMYK	cmyk(70.1%, 43.3%, 0%, 12.2%)
CIE-LAB	lab(53.76, 12.47, -55.14)
CIE-LCH	lch(53.76, 56.54, 282.74°)
OKLab	oklab(60.52% -0.029 -0.1577)
OKLCH	oklch(60.52% 0.16 259.6)
XYZ	xyz(23.3538, 21.7514, 73.4742)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FE0 #E0A443

analogous

#43CDE0 #437FE0 #5643E0

triadic

#437FE0 #E0437F #7FE043

tetradic

#437FE0 #E043CD #E0A443 #43E056

square

#437FE0 #E043CD #E0A443 #43E056

split-complementary

#437FE0 #E05643 #CDE043

monochromatic

#184691 #215FC5 #437FE0 #78A3E9 #ACC7F1

Accessibility & contrast

On white

3.92

#437FE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#437FE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FE0

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FE0	#FFFFFF	#000000	##000000
##437FE0	1.00	3.92	5.35	5.35
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5088E4

Deuteranopia (green-blind)

#337ADE

Tritanopia (blue-blind)

#0096A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #437fe0;
/* rgb */ color: rgb(67, 127, 224);
/* oklch */ color: oklch(60.5% 0.160 259.6);

Tailwind

colors: {
  custom: {
    50: '#89a3ea',
    500: '#437fe0',
    950: '#000000',
  },
}

SCSS

$custom: #437fe0;
$custom-light: #89a3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#437fe0",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 224
  },
  "hsl": {
    "h": 217.07,
    "s": 71.689,
    "l": 57.059
  },
  "oklch": {
    "l": 0.6052,
    "c": 0.16034,
    "h": 259.6
  },
  "luminance": 0.21754
}

Semantic roles & 50–950 ramp

primary

#437FE0

secondary

#DFC79F

accent

#A939EE

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #437FE0

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

Preview Lab → · Contrast checker → · Palette generator →