#4637BC#4637BC

#4637BC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.4% C 0.198 H 279.7°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#4637BC
RGB	rgb(70, 55, 188)
HSL	hsl(247, 55%, 48%)
HSV	hsv(247, 71%, 74%)
CMYK	cmyk(62.8%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(33.27, 45.01, -67.64)
CIE-LCH	lch(33.27, 81.25, 303.64°)
OKLab	oklab(44.41% 0.0334 -0.1951)
OKLCH	oklch(44.41% 0.198 279.7)
XYZ	xyz(12.9662, 7.6643, 48.3633)
Luminance	0.0766 (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

#4637BC #ADBC37

analogous

#376ABC #4637BC #8937BC

triadic

#4637BC #BC4637 #37BC46

tetradic

#4637BC #BC376A #ADBC37 #37BC89

square

#4637BC #BC376A #ADBC37 #37BC89

split-complementary

#4637BC #BC8937 #6ABC37

monochromatic

#231B5D #34298D #4637BC #6C60D0 #988FDE

Accessibility & contrast

On white

8.29

#4637BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#4637BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637BC

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637BC	#FFFFFF	#000000	##FFFFFF
##4637BC	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0049BA

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4637bc;
/* rgb */ color: rgb(70, 55, 188);
/* oklch */ color: oklch(44.4% 0.198 279.7);

Tailwind

colors: {
  custom: {
    50: '#8870d1',
    500: '#4637bc',
    950: '#000000',
  },
}

SCSS

$custom: #4637bc;
$custom-light: #8870d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4637bc",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 246.767,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44412,
    "c": 0.19795,
    "h": 279.7
  },
  "luminance": 0.07665
}

Semantic roles & 50–950 ramp

primary

#4637BC

secondary

#C1C986

accent

#DE4ACD

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4637BC

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

Preview Lab → · Contrast checker → · Palette generator →