#436FBF#436FBF

#436FBF is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.0% C 0.134 H 261.4°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#436FBF
RGB	rgb(67, 111, 191)
HSL	hsl(219, 49%, 51%)
HSV	hsv(219, 65%, 75%)
CMYK	cmyk(64.9%, 41.9%, 0%, 25.1%)
CIE-LAB	lab(47.39, 10.65, -46.54)
CIE-LCH	lch(47.39, 47.74, 282.89°)
OKLab	oklab(54.99% -0.0202 -0.1327)
OKLCH	oklch(54.99% 0.134 261.4)
XYZ	xyz(17.3998, 16.3221, 51.5136)
Luminance	0.1632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FBF #BF9343

analogous

#43ADBF #436FBF #5543BF

triadic

#436FBF #BF436F #6FBF43

tetradic

#436FBF #BF43AD #BF9343 #43BF55

square

#436FBF #BF43AD #BF9343 #43BF55

split-complementary

#436FBF #BF5543 #ADBF43

monochromatic

#223A65 #325493 #436FBF #7192CF #9EB5DE

Accessibility & contrast

On white

4.92

#436FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#436FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436FBF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FBF	#FFFFFF	#000000	##FFFFFF
##436FBF	1.00	4.92	4.26	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A77C2

Deuteranopia (green-blind)

#376BBD

Tritanopia (blue-blind)

#00818E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #436fbf;
/* rgb */ color: rgb(67, 111, 191);
/* oklch */ color: oklch(55.0% 0.134 261.4);

Tailwind

colors: {
  custom: {
    50: '#8397d3',
    500: '#436fbf',
    950: '#000000',
  },
}

SCSS

$custom: #436fbf;
$custom-light: #8397d3;
$custom-dark: #000000;

JSON

{
  "hex": "#436fbf",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 191
  },
  "hsl": {
    "h": 218.71,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.54986,
    "c": 0.13419,
    "h": 261.4
  },
  "luminance": 0.16324
}

Semantic roles & 50–950 ramp

primary

#436FBF

secondary

#CAB793

accent

#A84FD9

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #436FBF

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

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