#436AB3#436AB3

#436AB3 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.1% C 0.123 H 261.9°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#436AB3
RGB	rgb(67, 106, 179)
HSL	hsl(219, 46%, 48%)
HSV	hsv(219, 63%, 70%)
CMYK	cmyk(62.6%, 40.8%, 0%, 29.8%)
CIE-LAB	lab(45.30, 9.56, -42.92)
CIE-LCH	lch(45.30, 43.97, 282.56°)
OKLab	oklab(53.14% -0.0175 -0.1221)
OKLCH	oklch(53.14% 0.123 261.9)
XYZ	xyz(15.6026, 14.7546, 44.6648)
Luminance	0.1476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436AB3 #B38C43

analogous

#43A2B3 #436AB3 #5443B3

triadic

#436AB3 #B3436A #6AB343

tetradic

#436AB3 #B343A2 #B38C43 #43B354

square

#436AB3 #B343A2 #B38C43 #43B354

split-complementary

#436AB3 #B35443 #A2B343

monochromatic

#22355A #325086 #436AB3 #6B8CC8 #98AED8

Accessibility & contrast

On white

5.31

#436AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#436AB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436AB3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436AB3	#FFFFFF	#000000	##FFFFFF
##436AB3	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A71B6

Deuteranopia (green-blind)

#3A66B1

Tritanopia (blue-blind)

#007A86

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #436ab3;
/* rgb */ color: rgb(67, 106, 179);
/* oklch */ color: oklch(53.1% 0.123 261.9);

Tailwind

colors: {
  custom: {
    50: '#8194ca',
    500: '#436ab3',
    950: '#000000',
  },
}

SCSS

$custom: #436ab3;
$custom-light: #8194ca;
$custom-dark: #000000;

JSON

{
  "hex": "#436ab3",
  "rgb": {
    "r": 67,
    "g": 106,
    "b": 179
  },
  "hsl": {
    "h": 219.107,
    "s": 45.528,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53144,
    "c": 0.12336,
    "h": 261.9
  },
  "luminance": 0.14756
}

Semantic roles & 50–950 ramp

primary

#436AB3

secondary

#C4B18D

accent

#A853D5

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436AB3

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

Preview Lab → · Contrast checker → · Palette generator →