#436FD1#436FD1

#436FD1 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.2% C 0.159 H 263.8°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#436FD1
RGB	rgb(67, 111, 209)
HSL	hsl(221, 61%, 54%)
HSV	hsv(221, 68%, 82%)
CMYK	cmyk(67.9%, 46.9%, 0%, 18%)
CIE-LAB	lab(48.47, 17.05, -55.15)
CIE-LCH	lch(48.47, 57.73, 287.18°)
OKLab	oklab(56.16% -0.017 -0.158)
OKLCH	oklch(56.16% 0.159 263.8)
XYZ	xyz(19.5038, 17.1637, 62.5943)
Luminance	0.1717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FD1 #D1A543

analogous

#43B6D1 #436FD1 #5E43D1

triadic

#436FD1 #D1436F #6FD143

tetradic

#436FD1 #D143B6 #D1A543 #43D15E

square

#436FD1 #D143B6 #D1A543 #43D15E

split-complementary

#436FD1 #D15E43 #B6D143

monochromatic

#1E3B7B #2A53AD #436FD1 #7495DD #A5BAE9

Accessibility & contrast

On white

4.74

#436FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#436FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436FD1

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FD1	#FFFFFF	#000000	##FFFFFF
##436FD1	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7AD5

Deuteranopia (green-blind)

#1D6DCF

Tritanopia (blue-blind)

#008696

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #436fd1;
/* rgb */ color: rgb(67, 111, 209);
/* oklch */ color: oklch(56.2% 0.159 263.8);

Tailwind

colors: {
  custom: {
    50: '#8797e0',
    500: '#436fd1',
    950: '#000000',
  },
}

SCSS

$custom: #436fd1;
$custom-light: #8797e0;
$custom-dark: #000000;

JSON

{
  "hex": "#436fd1",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 209
  },
  "hsl": {
    "h": 221.408,
    "s": 60.684,
    "l": 54.118
  },
  "oklch": {
    "l": 0.56156,
    "c": 0.15889,
    "h": 263.8
  },
  "luminance": 0.17166
}

Semantic roles & 50–950 ramp

primary

#436FD1

secondary

#D6C39A

accent

#B244E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #436FD1

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

Preview Lab → · Contrast checker → · Palette generator →