#436ECF#436ECF

#436ECF is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.8% C 0.157 H 264.0°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#436ECF
RGB	rgb(67, 110, 207)
HSL	hsl(222, 59%, 54%)
HSV	hsv(222, 68%, 81%)
CMYK	cmyk(67.6%, 46.9%, 0%, 18.8%)
CIE-LAB	lab(48.07, 16.96, -54.65)
CIE-LCH	lch(48.07, 57.22, 287.24°)
OKLab	oklab(55.81% -0.0164 -0.1565)
OKLCH	oklch(55.81% 0.157 264)
XYZ	xyz(19.1492, 16.8483, 61.2622)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436ECF #CFA443

analogous

#43B4CF #436ECF #5E43CF

triadic

#436ECF #CF436E #6ECF43

tetradic

#436ECF #CF43B4 #CFA443 #43CF5E

square

#436ECF #CF43B4 #CFA443 #43CF5E

split-complementary

#436ECF #CF5E43 #B4CF43

monochromatic

#1F3A79 #2B52AA #436ECF #7494DB #A5B9E8

Accessibility & contrast

On white

4.81

#436ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#436ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436ECF

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436ECF	#FFFFFF	#000000	##FFFFFF
##436ECF	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C79D3

Deuteranopia (green-blind)

#1D6CCD

Tritanopia (blue-blind)

#008594

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #436ecf;
/* rgb */ color: rgb(67, 110, 207);
/* oklch */ color: oklch(55.8% 0.157 264.0);

Tailwind

colors: {
  custom: {
    50: '#8697de',
    500: '#436ecf',
    950: '#000000',
  },
}

SCSS

$custom: #436ecf;
$custom-light: #8697de;
$custom-dark: #000000;

JSON

{
  "hex": "#436ecf",
  "rgb": {
    "r": 67,
    "g": 110,
    "b": 207
  },
  "hsl": {
    "h": 221.571,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.55812,
    "c": 0.15737,
    "h": 264
  },
  "luminance": 0.1685
}

Semantic roles & 50–950 ramp

primary

#436ECF

secondary

#D5C299

accent

#B245E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #436ECF

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

Preview Lab → · Contrast checker → · Palette generator →