#436FE3#436FE3

#436FE3 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.4% C 0.183 H 265.4°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#436FE3
RGB	rgb(67, 111, 227)
HSL	hsl(224, 74%, 58%)
HSV	hsv(224, 70%, 89%)
CMYK	cmyk(70.5%, 51.1%, 0%, 11%)
CIE-LAB	lab(49.62, 23.48, -63.48)
CIE-LCH	lch(49.62, 67.69, 290.29°)
OKLab	oklab(57.41% -0.0148 -0.1825)
OKLCH	oklch(57.41% 0.183 265.4)
XYZ	xyz(21.8594, 18.1060, 75.0009)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FE3 #E3B743

analogous

#43BFE3 #436FE3 #6743E3

triadic

#436FE3 #E3436F #6FE343

tetradic

#436FE3 #E343BF #E3B743 #43E367

square

#436FE3 #E343BF #E3B743 #43E367

split-complementary

#436FE3 #E36743 #BFE343

monochromatic

#163995 #1E4ECB #436FE3 #7898EB #AEC1F3

Accessibility & contrast

On white

4.54

#436FE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#436FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #436FE3

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FE3	#FFFFFF	#000000	##000000
##436FE3	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#257EE7

Deuteranopia (green-blind)

#006FE1

Tritanopia (blue-blind)

#008B9E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #436fe3;
/* rgb */ color: rgb(67, 111, 227);
/* oklch */ color: oklch(57.4% 0.183 265.4);

Tailwind

colors: {
  custom: {
    50: '#8a97ed',
    500: '#436fe3',
    950: '#000000',
  },
}

SCSS

$custom: #436fe3;
$custom-light: #8a97ed;
$custom-dark: #000000;

JSON

{
  "hex": "#436fe3",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 227
  },
  "hsl": {
    "h": 223.5,
    "s": 74.074,
    "l": 57.647
  },
  "oklch": {
    "l": 0.57411,
    "c": 0.1831,
    "h": 265.4
  },
  "luminance": 0.18108
}

Semantic roles & 50–950 ramp

primary

#436FE3

secondary

#E1CFA1

accent

#BE37F1

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #436FE3

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

Preview Lab → · Contrast checker → · Palette generator →