#436BB5#436BB5

#436BB5 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.5% C 0.125 H 261.7°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#436BB5
RGB	rgb(67, 107, 181)
HSL	hsl(219, 46%, 49%)
HSV	hsv(219, 63%, 71%)
CMYK	cmyk(63%, 40.9%, 0%, 29%)
CIE-LAB	lab(45.69, 9.64, -43.45)
CIE-LCH	lch(45.69, 44.51, 282.51°)
OKLab	oklab(53.49% -0.0181 -0.1237)
OKLCH	oklch(53.49% 0.125 261.7)
XYZ	xyz(15.9100, 15.0434, 45.7723)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BB5 #B58D43

analogous

#43A4B5 #436BB5 #5443B5

triadic

#436BB5 #B5436B #6BB543

tetradic

#436BB5 #B543A4 #B58D43 #43B554

square

#436BB5 #B543A4 #B58D43 #43B554

split-complementary

#436BB5 #B55443 #A4B543

monochromatic

#22365C #325188 #436BB5 #6C8DC9 #99B0D9

Accessibility & contrast

On white

5.24

#436BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#436BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BB5

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BB5	#FFFFFF	#000000	##FFFFFF
##436BB5	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A72B8

Deuteranopia (green-blind)

#3A67B3

Tritanopia (blue-blind)

#007C87

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #436bb5;
/* rgb */ color: rgb(67, 107, 181);
/* oklch */ color: oklch(53.5% 0.125 261.7);

Tailwind

colors: {
  custom: {
    50: '#8294cb',
    500: '#436bb5',
    950: '#000000',
  },
}

SCSS

$custom: #436bb5;
$custom-light: #8294cb;
$custom-dark: #000000;

JSON

{
  "hex": "#436bb5",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 181
  },
  "hsl": {
    "h": 218.947,
    "s": 45.968,
    "l": 48.627
  },
  "oklch": {
    "l": 0.53488,
    "c": 0.12499,
    "h": 261.7
  },
  "luminance": 0.15045
}

Semantic roles & 50–950 ramp

primary

#436BB5

secondary

#C5B28F

accent

#A852D6

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436BB5

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

Preview Lab → · Contrast checker → · Palette generator →