#436DDB#436DDB

#436DDB is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.4% C 0.175 H 265.4°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#436DDB
RGB	rgb(67, 109, 219)
HSL	hsl(223, 68%, 56%)
HSV	hsv(223, 69%, 86%)
CMYK	cmyk(69.4%, 50.2%, 0%, 14.1%)
CIE-LAB	lab(48.56, 21.87, -60.68)
CIE-LCH	lch(48.56, 64.50, 289.82°)
OKLab	oklab(56.44% -0.014 -0.1743)
OKLCH	oklch(56.44% 0.175 265.4)
XYZ	xyz(20.5651, 17.2430, 69.2485)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436DDB #DBB143

analogous

#43B9DB #436DDB #6543DB

triadic

#436DDB #DB436D #6DDB43

tetradic

#436DDB #DB43B9 #DBB143 #43DB65

square

#436DDB #DB43B9 #DBB143 #43DB65

split-complementary

#436DDB #DB6543 #B9DB43

monochromatic

#1A3989 #244EBD #436DDB #7695E5 #AABDEF

Accessibility & contrast

On white

4.72

#436DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#436DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436DDB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436DDB	#FFFFFF	#000000	##FFFFFF
##436DDB	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7BDF

Deuteranopia (green-blind)

#006DD9

Tritanopia (blue-blind)

#00879A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #436ddb;
/* rgb */ color: rgb(67, 109, 219);
/* oklch */ color: oklch(56.4% 0.175 265.4);

Tailwind

colors: {
  custom: {
    50: '#8996e7',
    500: '#436ddb',
    950: '#000000',
  },
}

SCSS

$custom: #436ddb;
$custom-light: #8996e7;
$custom-dark: #000000;

JSON

{
  "hex": "#436ddb",
  "rgb": {
    "r": 67,
    "g": 109,
    "b": 219
  },
  "hsl": {
    "h": 223.421,
    "s": 67.857,
    "l": 56.078
  },
  "oklch": {
    "l": 0.56437,
    "c": 0.17482,
    "h": 265.4
  },
  "luminance": 0.17245
}

Semantic roles & 50–950 ramp

primary

#436DDB

secondary

#DCCB9E

accent

#BB3DEB

background

#F9F9FE

surface

#F1F1FC

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #436DDB

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

Preview Lab → · Contrast checker → · Palette generator →