#437AD5#437AD5

#437AD5 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.8% C 0.151 H 259.9°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#437AD5
RGB	rgb(67, 122, 213)
HSL	hsl(217, 63%, 55%)
HSV	hsv(217, 69%, 84%)
CMYK	cmyk(68.5%, 42.7%, 0%, 16.5%)
CIE-LAB	lab(51.74, 11.63, -52.18)
CIE-LCH	lch(51.74, 53.46, 282.56°)
OKLab	oklab(58.75% -0.0265 -0.1491)
OKLCH	oklch(58.75% 0.151 259.9)
XYZ	xyz(21.2802, 19.9143, 65.6602)
Luminance	0.1992 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437AD5 #D59E43

analogous

#43C3D5 #437AD5 #5543D5

triadic

#437AD5 #D5437A #7AD543

tetradic

#437AD5 #D543C3 #D59E43 #43D555

square

#437AD5 #D543C3 #D59E43 #43D555

split-complementary

#437AD5 #D55543 #C3D543

monochromatic

#1D4281 #285CB3 #437AD5 #759DE0 #A7C1EB

Accessibility & contrast

On white

4.21

#437AD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#437AD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437AD5

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437AD5	#FFFFFF	#000000	##000000
##437AD5	1.00	4.21	4.98	4.98
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E83D9

Deuteranopia (green-blind)

#3675D3

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #437ad5;
/* rgb */ color: rgb(67, 122, 213);
/* oklch */ color: oklch(58.8% 0.151 259.9);

Tailwind

colors: {
  custom: {
    50: '#879fe2',
    500: '#437ad5',
    950: '#000000',
  },
}

SCSS

$custom: #437ad5;
$custom-light: #879fe2;
$custom-dark: #000000;

JSON

{
  "hex": "#437ad5",
  "rgb": {
    "r": 67,
    "g": 122,
    "b": 213
  },
  "hsl": {
    "h": 217.397,
    "s": 63.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58753,
    "c": 0.1514,
    "h": 259.9
  },
  "luminance": 0.19916
}

Semantic roles & 50–950 ramp

primary

#437AD5

secondary

#D9C19B

accent

#A841E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #437AD5

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

Preview Lab → · Contrast checker → · Palette generator →