#4E59BB#4E59BB

#4E59BB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.8% C 0.153 H 274.8°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#4E59BB
RGB	rgb(78, 89, 187)
HSL	hsl(234, 44%, 52%)
HSV	hsv(234, 58%, 73%)
CMYK	cmyk(58.3%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(41.77, 25.23, -53.20)
CIE-LCH	lch(41.77, 58.88, 295.37°)
OKLab	oklab(50.78% 0.0127 -0.1523)
OKLCH	oklch(50.78% 0.153 274.8)
XYZ	xyz(15.6810, 12.3512, 48.5618)
Luminance	0.1235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E59BB #BBB04E

analogous

#4E90BB #4E59BB #7A4EBB

triadic

#4E59BB #BB4E59 #59BB4E

tetradic

#4E59BB #BB4E90 #BBB04E #4EBB7A

square

#4E59BB #BB4E90 #BBB04E #4EBB7A

split-complementary

#4E59BB #BB7A4E #90BB4E

monochromatic

#282E67 #394293 #4E59BB #7A82CC #A6ACDD

Accessibility & contrast

On white

6.05

#4E59BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#4E59BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E59BB

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E59BB	#FFFFFF	#000000	##FFFFFF
##4E59BB	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2167BE

Deuteranopia (green-blind)

#025EB9

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4e59bb;
/* rgb */ color: rgb(78, 89, 187);
/* oklch */ color: oklch(50.8% 0.153 274.8);

Tailwind

colors: {
  custom: {
    50: '#8987d0',
    500: '#4e59bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e59bb;
$custom-light: #8987d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e59bb",
  "rgb": {
    "r": 78,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 233.945,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50777,
    "c": 0.15284,
    "h": 274.8
  },
  "luminance": 0.12352
}

Semantic roles & 50–950 ramp

primary

#4E59BB

secondary

#CAC59B

accent

#C754D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4E59BB

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

Preview Lab → · Contrast checker → · Palette generator →