#4640CB#4640CB

#4640CB is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.2% C 0.207 H 276.8°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#4640CB
RGB	rgb(70, 64, 203)
HSL	hsl(243, 57%, 52%)
HSV	hsv(243, 68%, 80%)
CMYK	cmyk(65.5%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.52, 44.65, -71.10)
CIE-LCH	lch(36.52, 83.95, 302.13°)
OKLab	oklab(47.16% 0.0246 -0.2052)
OKLCH	oklch(47.16% 0.207 276.8)
XYZ	xyz(15.1352, 9.2794, 57.4818)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4640CB #C5CB40

analogous

#407FCB #4640CB #8C40CB

triadic

#4640CB #CB4640 #40CB46

tetradic

#4640CB #CB407F #C5CB40 #40CB8C

square

#4640CB #CB407F #C5CB40 #40CB8C

split-complementary

#4640CB #CB8C40 #7FCB40

monochromatic

#231F72 #312CA2 #4640CB #7570D8 #A3A0E5

Accessibility & contrast

On white

7.35

#4640CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4640CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4640CB

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4640CB	#FFFFFF	#000000	##FFFFFF
##4640CB	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0050C8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4640cb;
/* rgb */ color: rgb(70, 64, 203);
/* oklch */ color: oklch(47.2% 0.207 276.8);

Tailwind

colors: {
  custom: {
    50: '#8a76dc',
    500: '#4640cb',
    950: '#000000',
  },
}

SCSS

$custom: #4640cb;
$custom-light: #8a76dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4640cb",
  "rgb": {
    "r": 70,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 242.59,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47155,
    "c": 0.2067,
    "h": 276.8
  },
  "luminance": 0.09281
}

Semantic roles & 50–950 ramp

primary

#4640CB

secondary

#CFD295

accent

#E047DA

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4640CB

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

Preview Lab → · Contrast checker → · Palette generator →