#437CD4#437CD4

#437CD4 is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.1% C 0.148 H 258.9°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#437CD4
RGB	rgb(67, 124, 212)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 68%, 83%)
CMYK	cmyk(68.4%, 41.5%, 0%, 16.9%)
CIE-LAB	lab(52.24, 10.04, -50.81)
CIE-LCH	lch(52.24, 51.79, 281.18°)
OKLab	oklab(59.12% -0.0286 -0.145)
OKLCH	oklch(59.12% 0.148 258.9)
XYZ	xyz(21.4018, 20.3599, 65.0765)
Luminance	0.2036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CD4 #D49B43

analogous

#43C5D4 #437CD4 #5343D4

triadic

#437CD4 #D4437C #7CD443

tetradic

#437CD4 #D443C5 #D49B43 #43D453

square

#437CD4 #D443C5 #D49B43 #43D453

split-complementary

#437CD4 #D45343 #C5D443

monochromatic

#1D447F #295EB1 #437CD4 #759FDF #A7C1EB

Accessibility & contrast

On white

4.14

#437CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#437CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CD4

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CD4	#FFFFFF	#000000	##000000
##437CD4	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5384D7

Deuteranopia (green-blind)

#3B76D2

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437cd4;
/* rgb */ color: rgb(67, 124, 212);
/* oklch */ color: oklch(59.1% 0.148 258.9);

Tailwind

colors: {
  custom: {
    50: '#87a1e2',
    500: '#437cd4',
    950: '#000000',
  },
}

SCSS

$custom: #437cd4;
$custom-light: #87a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#437cd4",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 212
  },
  "hsl": {
    "h": 216.414,
    "s": 62.771,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59122,
    "c": 0.14781,
    "h": 258.9
  },
  "luminance": 0.20362
}

Semantic roles & 50–950 ramp

primary

#437CD4

secondary

#D8C09B

accent

#A542E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437CD4

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

Preview Lab → · Contrast checker → · Palette generator →