#4638AB#4638AB

#4638AB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.175 H 281.6°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#4638AB
RGB	rgb(70, 56, 171)
HSL	hsl(247, 51%, 45%)
HSV	hsv(247, 67%, 67%)
CMYK	cmyk(59.1%, 67.3%, 0%, 32.9%)
CIE-LAB	lab(31.97, 39.02, -59.69)
CIE-LCH	lch(31.97, 71.31, 303.18°)
OKLab	oklab(43.01% 0.0353 -0.1718)
OKLCH	oklch(43.01% 0.175 281.6)
XYZ	xyz(11.2884, 7.0700, 39.2900)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.14

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4638AB #9DAB38

analogous

#3864AB #4638AB #7F38AB

triadic

#4638AB #AB4638 #38AB46

tetradic

#4638AB #AB3864 #9DAB38 #38AB7F

square

#4638AB #AB3864 #9DAB38 #38AB7F

split-complementary

#4638AB #AB7F38 #64AB38

monochromatic

#201A4F #33297D #4638AB #6658C8 #9086D7

Accessibility & contrast

On white

8.70

#4638AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4638AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4638AB

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4638AB	#FFFFFF	#000000	##FFFFFF
##4638AB	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0047A9

Tritanopia (blue-blind)

#03566C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4638ab;
/* rgb */ color: rgb(70, 56, 171);
/* oklch */ color: oklch(43.0% 0.175 281.6);

Tailwind

colors: {
  custom: {
    50: '#8470c5',
    500: '#4638ab',
    950: '#000000',
  },
}

SCSS

$custom: #4638ab;
$custom-light: #8470c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4638ab",
  "rgb": {
    "r": 70,
    "g": 56,
    "b": 171
  },
  "hsl": {
    "h": 247.304,
    "s": 50.661,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43007,
    "c": 0.1754,
    "h": 281.6
  },
  "luminance": 0.07071
}

Semantic roles & 50–950 ramp

primary

#4638AB

secondary

#B9C17D

accent

#DA4EC9

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4638AB

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

Preview Lab → · Contrast checker → · Palette generator →