#4639CB#4639CB

#4639CB is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.1% C 0.214 H 277.9°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#4639CB
RGB	rgb(70, 57, 203)
HSL	hsl(245, 58%, 51%)
HSV	hsv(245, 72%, 80%)
CMYK	cmyk(65.5%, 71.9%, 0%, 20.4%)
CIE-LAB	lab(35.08, 48.61, -73.46)
CIE-LCH	lch(35.08, 88.08, 303.49°)
OKLab	oklab(46.13% 0.0293 -0.2121)
OKLCH	oklch(46.13% 0.214 277.9)
XYZ	xyz(14.7649, 8.5389, 57.3584)
Luminance	0.0854 (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

#4639CB #BECB39

analogous

#3975CB #4639CB #8F39CB

triadic

#4639CB #CB4639 #39CB46

tetradic

#4639CB #CB3975 #BECB39 #39CB8F

square

#4639CB #CB3975 #BECB39 #39CB8F

split-complementary

#4639CB #CB8F39 #75CB39

monochromatic

#241D6D #34299D #4639CB #7369D8 #A19AE4

Accessibility & contrast

On white

7.75

#4639CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4639CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639CB

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639CB	#FFFFFF	#000000	##FFFFFF
##4639CB	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CF

Deuteranopia (green-blind)

#004CC8

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4639cb;
/* rgb */ color: rgb(70, 57, 203);
/* oklch */ color: oklch(46.1% 0.214 277.9);

Tailwind

colors: {
  custom: {
    50: '#8a71dc',
    500: '#4639cb',
    950: '#000000',
  },
}

SCSS

$custom: #4639cb;
$custom-light: #8a71dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4639cb",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 203
  },
  "hsl": {
    "h": 245.342,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46127,
    "c": 0.21412,
    "h": 277.9
  },
  "luminance": 0.0854
}

Semantic roles & 50–950 ramp

primary

#4639CB

secondary

#CAD090

accent

#E246D4

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4639CB

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

Preview Lab → · Contrast checker → · Palette generator →