#436CB1#436CB1

#436CB1 is a mid, moderate blue. Relative luminance 0.151; OKLCH L 53.5% C 0.118 H 260.2°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#436CB1
RGB	rgb(67, 108, 177)
HSL	hsl(218, 45%, 48%)
HSV	hsv(218, 62%, 69%)
CMYK	cmyk(62.1%, 39%, 0%, 30.6%)
CIE-LAB	lab(45.76, 7.61, -41.02)
CIE-LCH	lch(45.76, 41.72, 280.52°)
OKLab	oklab(53.47% -0.02 -0.1165)
OKLCH	oklch(53.47% 0.118 260.2)
XYZ	xyz(15.6103, 15.0913, 43.6767)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436CB1 #B18843

analogous

#43A3B1 #436CB1 #5143B1

triadic

#436CB1 #B1436C #6CB143

tetradic

#436CB1 #B143A3 #B18843 #43B151

square

#436CB1 #B143A3 #B18843 #43B151

split-complementary

#436CB1 #B15143 #A3B143

monochromatic

#213658 #325185 #436CB1 #6A8DC7 #97AFD8

Accessibility & contrast

On white

5.23

#436CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#436CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436CB1

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436CB1	#FFFFFF	#000000	##FFFFFF
##436CB1	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E72B4

Deuteranopia (green-blind)

#3F68B0

Tritanopia (blue-blind)

#007C86

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #436cb1;
/* rgb */ color: rgb(67, 108, 177);
/* oklch */ color: oklch(53.5% 0.118 260.2);

Tailwind

colors: {
  custom: {
    50: '#8195c8',
    500: '#436cb1',
    950: '#000000',
  },
}

SCSS

$custom: #436cb1;
$custom-light: #8195c8;
$custom-dark: #000000;

JSON

{
  "hex": "#436cb1",
  "rgb": {
    "r": 67,
    "g": 108,
    "b": 177
  },
  "hsl": {
    "h": 217.636,
    "s": 45.082,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53467,
    "c": 0.11824,
    "h": 260.2
  },
  "luminance": 0.15093
}

Semantic roles & 50–950 ramp

primary

#436CB1

secondary

#C3AF8C

accent

#A453D5

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436CB1

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

Preview Lab → · Contrast checker → · Palette generator →