#436BE1#436BE1

#436BE1 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.5% C 0.185 H 266.4°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#436BE1
RGB	rgb(67, 107, 225)
HSL	hsl(225, 72%, 57%)
HSV	hsv(225, 70%, 88%)
CMYK	cmyk(70.2%, 52.4%, 0%, 11.8%)
CIE-LAB	lab(48.44, 25.27, -64.27)
CIE-LCH	lch(48.44, 69.06, 291.47°)
OKLab	oklab(56.47% -0.0117 -0.1849)
OKLCH	oklch(56.47% 0.185 266.4)
XYZ	xyz(21.1583, 17.1427, 73.4134)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BE1 #E1B943

analogous

#43BAE1 #436BE1 #6A43E1

triadic

#436BE1 #E1436B #6BE143

tetradic

#436BE1 #E143BA #E1B943 #43E16A

square

#436BE1 #E143BA #E1B943 #43E16A

split-complementary

#436BE1 #E16A43 #BAE143

monochromatic

#173692 #204AC7 #436BE1 #7895E9 #ADBEF2

Accessibility & contrast

On white

4.74

#436BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#436BE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BE1

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BE1	#FFFFFF	#000000	##FFFFFF
##436BE1	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#187BE5

Deuteranopia (green-blind)

#006CDF

Tritanopia (blue-blind)

#00879C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #436be1;
/* rgb */ color: rgb(67, 107, 225);
/* oklch */ color: oklch(56.5% 0.185 266.4);

Tailwind

colors: {
  custom: {
    50: '#8a94eb',
    500: '#436be1',
    950: '#000000',
  },
}

SCSS

$custom: #436be1;
$custom-light: #8a94eb;
$custom-dark: #000000;

JSON

{
  "hex": "#436be1",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 225
  },
  "hsl": {
    "h": 224.81,
    "s": 72.477,
    "l": 57.255
  },
  "oklch": {
    "l": 0.5647,
    "c": 0.18525,
    "h": 266.4
  },
  "luminance": 0.17145
}

Semantic roles & 50–950 ramp

primary

#436BE1

secondary

#E0D0A0

accent

#C139EF

background

#F9F9FE

surface

#F1F1FD

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #436BE1

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

Preview Lab → · Contrast checker → · Palette generator →