#436FCF#436FCF

#436FCF is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.156 H 263.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#436FCF
RGB	rgb(67, 111, 207)
HSL	hsl(221, 59%, 54%)
HSV	hsv(221, 68%, 81%)
CMYK	cmyk(67.6%, 46.4%, 0%, 18.8%)
CIE-LAB	lab(48.34, 16.33, -54.21)
CIE-LCH	lch(48.34, 56.61, 286.77°)
OKLab	oklab(56.02% -0.0173 -0.1552)
OKLCH	oklch(56.02% 0.156 263.6)
XYZ	xyz(19.2577, 17.0653, 61.2984)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FCF #CFA343

analogous

#43B5CF #436FCF #5D43CF

triadic

#436FCF #CF436F #6FCF43

tetradic

#436FCF #CF43B5 #CFA343 #43CF5D

square

#436FCF #CF43B5 #CFA343 #43CF5D

split-complementary

#436FCF #CF5D43 #B5CF43

monochromatic

#1F3B79 #2B53AA #436FCF #7494DB #A5BAE8

Accessibility & contrast

On white

4.76

#436FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#436FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436FCF

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FCF	#FFFFFF	#000000	##FFFFFF
##436FCF	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7AD3

Deuteranopia (green-blind)

#216DCD

Tritanopia (blue-blind)

#008595

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #436fcf;
/* rgb */ color: rgb(67, 111, 207);
/* oklch */ color: oklch(56.0% 0.156 263.6);

Tailwind

colors: {
  custom: {
    50: '#8697de',
    500: '#436fcf',
    950: '#000000',
  },
}

SCSS

$custom: #436fcf;
$custom-light: #8697de;
$custom-dark: #000000;

JSON

{
  "hex": "#436fcf",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 207
  },
  "hsl": {
    "h": 221.143,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.56022,
    "c": 0.15616,
    "h": 263.6
  },
  "luminance": 0.17067
}

Semantic roles & 50–950 ramp

primary

#436FCF

secondary

#D5C299

accent

#B145E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #436FCF

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

Preview Lab → · Contrast checker → · Palette generator →