#437CD5#437CD5

#437CD5 is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.2% C 0.149 H 259.0°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#437CD5
RGB	rgb(67, 124, 213)
HSL	hsl(217, 63%, 55%)
HSV	hsv(217, 69%, 84%)
CMYK	cmyk(68.5%, 41.8%, 0%, 16.5%)
CIE-LAB	lab(52.30, 10.40, -51.29)
CIE-LCH	lch(52.30, 52.33, 281.46°)
OKLab	oklab(59.18% -0.0284 -0.1464)
OKLCH	oklch(59.18% 0.149 259)
XYZ	xyz(21.5283, 20.4105, 65.7429)
Luminance	0.2041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CD5 #D59C43

analogous

#43C5D5 #437CD5 #5343D5

triadic

#437CD5 #D5437C #7CD543

tetradic

#437CD5 #D543C5 #D59C43 #43D553

square

#437CD5 #D543C5 #D59C43 #43D553

split-complementary

#437CD5 #D55343 #C5D543

monochromatic

#1D4481 #285EB3 #437CD5 #759FE0 #A7C2EB

Accessibility & contrast

On white

4.13

#437CD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#437CD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CD5

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CD5	#FFFFFF	#000000	##000000
##437CD5	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5284D8

Deuteranopia (green-blind)

#3A77D3

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437cd5;
/* rgb */ color: rgb(67, 124, 213);
/* oklch */ color: oklch(59.2% 0.149 259.0);

Tailwind

colors: {
  custom: {
    50: '#87a1e2',
    500: '#437cd5',
    950: '#000000',
  },
}

SCSS

$custom: #437cd5;
$custom-light: #87a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#437cd5",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 213
  },
  "hsl": {
    "h": 216.575,
    "s": 63.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59184,
    "c": 0.14913,
    "h": 259
  },
  "luminance": 0.20413
}

Semantic roles & 50–950 ramp

primary

#437CD5

secondary

#D9C19B

accent

#A641E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #437CD5

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

Preview Lab → · Contrast checker → · Palette generator →