#437ED4#437ED4

#437ED4 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.6% C 0.146 H 257.9°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#437ED4
RGB	rgb(67, 126, 212)
HSL	hsl(216, 63%, 55%)
HSV	hsv(216, 68%, 83%)
CMYK	cmyk(68.4%, 40.6%, 0%, 16.9%)
CIE-LAB	lab(52.80, 8.82, -49.92)
CIE-LCH	lch(52.80, 50.69, 280.02°)
OKLab	oklab(59.56% -0.0305 -0.1424)
OKLCH	oklch(59.56% 0.146 257.9)
XYZ	xyz(21.6550, 20.8662, 65.1609)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437ED4 #D49943

analogous

#43C7D4 #437ED4 #5043D4

triadic

#437ED4 #D4437E #7ED443

tetradic

#437ED4 #D443C7 #D49943 #43D450

square

#437ED4 #D443C7 #D49943 #43D450

split-complementary

#437ED4 #D45043 #C7D443

monochromatic

#1D457F #2960B1 #437ED4 #75A0DF #A7C2EB

Accessibility & contrast

On white

4.06

#437ED4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#437ED4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437ED4

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437ED4	#FFFFFF	#000000	##000000
##437ED4	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5685D7

Deuteranopia (green-blind)

#3F78D2

Tritanopia (blue-blind)

#00929F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437ed4;
/* rgb */ color: rgb(67, 126, 212);
/* oklch */ color: oklch(59.6% 0.146 257.9);

Tailwind

colors: {
  custom: {
    50: '#87a2e2',
    500: '#437ed4',
    950: '#000000',
  },
}

SCSS

$custom: #437ed4;
$custom-light: #87a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#437ed4",
  "rgb": {
    "r": 67,
    "g": 126,
    "b": 212
  },
  "hsl": {
    "h": 215.586,
    "s": 62.771,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59557,
    "c": 0.14558,
    "h": 257.9
  },
  "luminance": 0.20868
}

Semantic roles & 50–950 ramp

primary

#437ED4

secondary

#D8BF9B

accent

#A342E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #437ED4

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

Preview Lab → · Contrast checker → · Palette generator →