#436CB3#436CB3

#436CB3 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.6% C 0.121 H 260.7°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#436CB3
RGB	rgb(67, 108, 179)
HSL	hsl(218, 46%, 48%)
HSV	hsv(218, 63%, 70%)
CMYK	cmyk(62.6%, 39.7%, 0%, 29.8%)
CIE-LAB	lab(45.87, 8.31, -42.01)
CIE-LCH	lch(45.87, 42.83, 281.19°)
OKLab	oklab(53.59% -0.0196 -0.1194)
OKLCH	oklch(53.59% 0.121 260.7)
XYZ	xyz(15.8111, 15.1717, 44.7343)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436CB3 #B38A43

analogous

#43A4B3 #436CB3 #5243B3

triadic

#436CB3 #B3436C #6CB343

tetradic

#436CB3 #B343A4 #B38A43 #43B352

square

#436CB3 #B343A4 #B38A43 #43B352

split-complementary

#436CB3 #B35243 #A4B343

monochromatic

#22365A #325186 #436CB3 #6B8DC8 #98B0D8

Accessibility & contrast

On white

5.20

#436CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#436CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436CB3

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436CB3	#FFFFFF	#000000	##FFFFFF
##436CB3	1.00	5.20	4.03	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D72B6

Deuteranopia (green-blind)

#3D68B2

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #436cb3;
/* rgb */ color: rgb(67, 108, 179);
/* oklch */ color: oklch(53.6% 0.121 260.7);

Tailwind

colors: {
  custom: {
    50: '#8195ca',
    500: '#436cb3',
    950: '#000000',
  },
}

SCSS

$custom: #436cb3;
$custom-light: #8195ca;
$custom-dark: #000000;

JSON

{
  "hex": "#436cb3",
  "rgb": {
    "r": 67,
    "g": 108,
    "b": 179
  },
  "hsl": {
    "h": 218.036,
    "s": 45.528,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53587,
    "c": 0.12103,
    "h": 260.7
  },
  "luminance": 0.15173
}

Semantic roles & 50–950 ramp

primary

#436CB3

secondary

#C4B08D

accent

#A553D5

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436CB3

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

Preview Lab → · Contrast checker → · Palette generator →