#436FDB#436FDB

#436FDB is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.8% C 0.172 H 264.8°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#436FDB
RGB	rgb(67, 111, 219)
HSL	hsl(223, 68%, 56%)
HSV	hsv(223, 69%, 86%)
CMYK	cmyk(69.4%, 49.3%, 0%, 14.1%)
CIE-LAB	lab(49.10, 20.62, -59.81)
CIE-LCH	lch(49.10, 63.27, 289.02°)
OKLab	oklab(56.84% -0.0157 -0.1717)
OKLCH	oklch(56.84% 0.172 264.8)
XYZ	xyz(20.7809, 17.6745, 69.3204)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FDB #DBAF43

analogous

#43BBDB #436FDB #6343DB

triadic

#436FDB #DB436F #6FDB43

tetradic

#436FDB #DB43BB #DBAF43 #43DB63

square

#436FDB #DB43BB #DBAF43 #43DB63

split-complementary

#436FDB #DB6343 #BBDB43

monochromatic

#1A3A89 #2450BD #436FDB #7696E5 #AABEEF

Accessibility & contrast

On white

4.63

#436FDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#436FDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #436FDB

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FDB	#FFFFFF	#000000	##FFFFFF
##436FDB	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#317CDF

Deuteranopia (green-blind)

#006ED9

Tritanopia (blue-blind)

#00889A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #436fdb;
/* rgb */ color: rgb(67, 111, 219);
/* oklch */ color: oklch(56.8% 0.172 264.8);

Tailwind

colors: {
  custom: {
    50: '#8897e7',
    500: '#436fdb',
    950: '#000000',
  },
}

SCSS

$custom: #436fdb;
$custom-light: #8897e7;
$custom-dark: #000000;

JSON

{
  "hex": "#436fdb",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 219
  },
  "hsl": {
    "h": 222.632,
    "s": 67.857,
    "l": 56.078
  },
  "oklch": {
    "l": 0.56843,
    "c": 0.17242,
    "h": 264.8
  },
  "luminance": 0.17677
}

Semantic roles & 50–950 ramp

primary

#436FDB

secondary

#DCCA9E

accent

#B83DEB

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #436FDB

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

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