#436BBB#436BBB

#436BBB is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.9% C 0.133 H 262.7°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#436BBB
RGB	rgb(67, 107, 187)
HSL	hsl(220, 47%, 50%)
HSV	hsv(220, 64%, 73%)
CMYK	cmyk(64.2%, 42.8%, 0%, 26.7%)
CIE-LAB	lab(46.04, 11.75, -46.39)
CIE-LCH	lch(46.04, 47.86, 284.21°)
OKLab	oklab(53.86% -0.0169 -0.1323)
OKLCH	oklch(53.86% 0.133 262.7)
XYZ	xyz(16.5389, 15.2950, 49.0847)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BBB #BB9343

analogous

#43A7BB #436BBB #5743BB

triadic

#436BBB #BB436B #6BBB43

tetradic

#436BBB #BB43A7 #BB9343 #43BB57

square

#436BBB #BB43A7 #BB9343 #43BB57

split-complementary

#436BBB #BB5743 #A7BB43

monochromatic

#233761 #33518E #436BBB #708ECC #9DB2DC

Accessibility & contrast

On white

5.17

#436BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#436BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BBB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BBB	#FFFFFF	#000000	##FFFFFF
##436BBB	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4673BE

Deuteranopia (green-blind)

#3468B9

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #436bbb;
/* rgb */ color: rgb(67, 107, 187);
/* oklch */ color: oklch(53.9% 0.133 262.7);

Tailwind

colors: {
  custom: {
    50: '#8394d0',
    500: '#436bbb',
    950: '#000000',
  },
}

SCSS

$custom: #436bbb;
$custom-light: #8394d0;
$custom-dark: #000000;

JSON

{
  "hex": "#436bbb",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 187
  },
  "hsl": {
    "h": 220,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.53863,
    "c": 0.13337,
    "h": 262.7
  },
  "luminance": 0.15297
}

Semantic roles & 50–950 ramp

primary

#436BBB

secondary

#C8B692

accent

#AA51D7

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #436BBB

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

Preview Lab → · Contrast checker → · Palette generator →