#436FBC#436FBC

#436FBC is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.8% C 0.130 H 260.8°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#436FBC
RGB	rgb(67, 111, 188)
HSL	hsl(218, 47%, 50%)
HSV	hsv(218, 64%, 74%)
CMYK	cmyk(64.4%, 41%, 0%, 26.3%)
CIE-LAB	lab(47.22, 9.60, -45.08)
CIE-LCH	lch(47.22, 46.09, 282.02°)
OKLab	oklab(54.8% -0.0208 -0.1284)
OKLCH	oklch(54.8% 0.13 260.8)
XYZ	xyz(17.0731, 16.1914, 49.7927)
Luminance	0.1619 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FBC #BC9043

analogous

#43ABBC #436FBC #5443BC

triadic

#436FBC #BC436F #6FBC43

tetradic

#436FBC #BC43AB #BC9043 #43BC54

square

#436FBC #BC43AB #BC9043 #43BC54

split-complementary

#436FBC #BC5443 #ABBC43

monochromatic

#233A62 #33548F #436FBC #7092CC #9DB4DC

Accessibility & contrast

On white

4.95

#436FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#436FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436FBC

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FBC	#FFFFFF	#000000	##FFFFFF
##436FBC	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C76BF

Deuteranopia (green-blind)

#3A6BBA

Tritanopia (blue-blind)

#00818C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #436fbc;
/* rgb */ color: rgb(67, 111, 188);
/* oklch */ color: oklch(54.8% 0.130 260.8);

Tailwind

colors: {
  custom: {
    50: '#8397d0',
    500: '#436fbc',
    950: '#000000',
  },
}

SCSS

$custom: #436fbc;
$custom-light: #8397d0;
$custom-dark: #000000;

JSON

{
  "hex": "#436fbc",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 188
  },
  "hsl": {
    "h": 218.182,
    "s": 47.451,
    "l": 50
  },
  "oklch": {
    "l": 0.548,
    "c": 0.13005,
    "h": 260.8
  },
  "luminance": 0.16193
}

Semantic roles & 50–950 ramp

primary

#436FBC

secondary

#C9B592

accent

#A651D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #436FBC

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

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