#436BB3#436BB3

#436BB3 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.4% C 0.122 H 261.3°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#436BB3
RGB	rgb(67, 107, 179)
HSL	hsl(219, 46%, 48%)
HSV	hsv(219, 63%, 70%)
CMYK	cmyk(62.6%, 40.2%, 0%, 29.8%)
CIE-LAB	lab(45.58, 8.94, -42.47)
CIE-LCH	lch(45.58, 43.40, 281.89°)
OKLab	oklab(53.36% -0.0185 -0.1208)
OKLCH	oklch(53.36% 0.122 261.3)
XYZ	xyz(15.7063, 14.9619, 44.6993)
Luminance	0.1496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BB3 #B38B43

analogous

#43A3B3 #436BB3 #5343B3

triadic

#436BB3 #B3436B #6BB343

tetradic

#436BB3 #B343A3 #B38B43 #43B353

square

#436BB3 #B343A3 #B38B43 #43B353

split-complementary

#436BB3 #B35343 #A3B343

monochromatic

#22365A #325086 #436BB3 #6B8CC8 #98AFD8

Accessibility & contrast

On white

5.26

#436BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#436BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BB3

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BB3	#FFFFFF	#000000	##FFFFFF
##436BB3	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B72B6

Deuteranopia (green-blind)

#3B67B1

Tritanopia (blue-blind)

#007B86

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #436bb3;
/* rgb */ color: rgb(67, 107, 179);
/* oklch */ color: oklch(53.4% 0.122 261.3);

Tailwind

colors: {
  custom: {
    50: '#8194ca',
    500: '#436bb3',
    950: '#000000',
  },
}

SCSS

$custom: #436bb3;
$custom-light: #8194ca;
$custom-dark: #000000;

JSON

{
  "hex": "#436bb3",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 179
  },
  "hsl": {
    "h": 218.571,
    "s": 45.528,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53365,
    "c": 0.12219,
    "h": 261.3
  },
  "luminance": 0.14963
}

Semantic roles & 50–950 ramp

primary

#436BB3

secondary

#C4B18D

accent

#A753D5

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436BB3

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

Preview Lab → · Contrast checker → · Palette generator →