#4637BF#4637BF

#4637BF is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.7% C 0.202 H 279.4°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#4637BF
RGB	rgb(70, 55, 191)
HSL	hsl(247, 55%, 48%)
HSV	hsv(247, 71%, 75%)
CMYK	cmyk(63.4%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(33.55, 45.95, -68.95)
CIE-LCH	lch(33.55, 82.86, 303.68°)
OKLab	oklab(44.7% 0.0329 -0.1989)
OKLCH	oklch(44.7% 0.202 279.4)
XYZ	xyz(13.2929, 7.7950, 50.0842)
Luminance	0.0780 (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

#4637BF #B0BF37

analogous

#376CBF #4637BF #8A37BF

triadic

#4637BF #BF4637 #37BF46

tetradic

#4637BF #BF376C #B0BF37 #37BF8A

square

#4637BF #BF376C #B0BF37 #37BF8A

split-complementary

#4637BF #BF8A37 #6CBF37

monochromatic

#231C60 #35298F #4637BF #6E62D2 #9A91DF

Accessibility & contrast

On white

8.21

#4637BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4637BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637BF

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637BF	#FFFFFF	#000000	##FFFFFF
##4637BF	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C3

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4637bf;
/* rgb */ color: rgb(70, 55, 191);
/* oklch */ color: oklch(44.7% 0.202 279.4);

Tailwind

colors: {
  custom: {
    50: '#8870d3',
    500: '#4637bf',
    950: '#000000',
  },
}

SCSS

$custom: #4637bf;
$custom-light: #8870d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4637bf",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 246.618,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44696,
    "c": 0.20164,
    "h": 279.4
  },
  "luminance": 0.07796
}

Semantic roles & 50–950 ramp

primary

#4637BF

secondary

#C3CA88

accent

#DF49CE

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4637BF

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

Preview Lab → · Contrast checker → · Palette generator →