#436ECB#436ECB

#436ECB is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.5% C 0.152 H 263.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#436ECB
RGB	rgb(67, 110, 203)
HSL	hsl(221, 57%, 53%)
HSV	hsv(221, 67%, 80%)
CMYK	cmyk(67%, 45.8%, 0%, 20.4%)
CIE-LAB	lab(47.82, 15.54, -52.75)
CIE-LCH	lch(47.82, 54.99, 286.41°)
OKLab	oklab(55.55% -0.017 -0.1509)
OKLCH	oklch(55.55% 0.152 263.6)
XYZ	xyz(18.6664, 16.6551, 58.7194)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436ECB #CBA043

analogous

#43B2CB #436ECB #5C43CB

triadic

#436ECB #CB436E #6ECB43

tetradic

#436ECB #CB43B2 #CBA043 #43CB5C

square

#436ECB #CB43B2 #CBA043 #43CB5C

split-complementary

#436ECB #CB5C43 #B2CB43

monochromatic

#203A74 #2D53A4 #436ECB #7393D8 #A3B8E6

Accessibility & contrast

On white

4.85

#436ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#436ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436ECB

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436ECB	#FFFFFF	#000000	##FFFFFF
##436ECB	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F78CE

Deuteranopia (green-blind)

#256CC9

Tritanopia (blue-blind)

#008492

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #436ecb;
/* rgb */ color: rgb(67, 110, 203);
/* oklch */ color: oklch(55.5% 0.152 263.6);

Tailwind

colors: {
  custom: {
    50: '#8597db',
    500: '#436ecb',
    950: '#000000',
  },
}

SCSS

$custom: #436ecb;
$custom-light: #8597db;
$custom-dark: #000000;

JSON

{
  "hex": "#436ecb",
  "rgb": {
    "r": 67,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 221.029,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.55545,
    "c": 0.1519,
    "h": 263.6
  },
  "luminance": 0.16657
}

Semantic roles & 50–950 ramp

primary

#436ECB

secondary

#D2C098

accent

#B048E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #436ECB

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

Preview Lab → · Contrast checker → · Palette generator →