#436BB9#436BB9

#436BB9 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.7% C 0.131 H 262.4°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#436BB9
RGB	rgb(67, 107, 185)
HSL	hsl(220, 47%, 49%)
HSV	hsv(220, 64%, 73%)
CMYK	cmyk(63.8%, 42.2%, 0%, 27.5%)
CIE-LAB	lab(45.92, 11.04, -45.42)
CIE-LCH	lch(45.92, 46.74, 283.67°)
OKLab	oklab(53.74% -0.0173 -0.1294)
OKLCH	oklch(53.74% 0.131 262.4)
XYZ	xyz(16.3263, 15.2100, 47.9650)
Luminance	0.1521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BB9 #B99143

analogous

#43A6B9 #436BB9 #5643B9

triadic

#436BB9 #B9436B #6BB943

tetradic

#436BB9 #B943A6 #B99143 #43B956

square

#436BB9 #B943A6 #B99143 #43B956

split-complementary

#436BB9 #B95643 #A6B943

monochromatic

#22375F #33518C #436BB9 #6F8ECB #9BB1DB

Accessibility & contrast

On white

5.20

#436BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#436BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BB9

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BB9	#FFFFFF	#000000	##FFFFFF
##436BB9	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4873BC

Deuteranopia (green-blind)

#3668B7

Tritanopia (blue-blind)

#007D89

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #436bb9;
/* rgb */ color: rgb(67, 107, 185);
/* oklch */ color: oklch(53.7% 0.131 262.4);

Tailwind

colors: {
  custom: {
    50: '#8294ce',
    500: '#436bb9',
    950: '#000000',
  },
}

SCSS

$custom: #436bb9;
$custom-light: #8294ce;
$custom-dark: #000000;

JSON

{
  "hex": "#436bb9",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 185
  },
  "hsl": {
    "h": 219.661,
    "s": 46.825,
    "l": 49.412
  },
  "oklch": {
    "l": 0.53737,
    "c": 0.13058,
    "h": 262.4
  },
  "luminance": 0.15211
}

Semantic roles & 50–950 ramp

primary

#436BB9

secondary

#C7B591

accent

#A951D6

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #436BB9

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

Preview Lab → · Contrast checker → · Palette generator →