#4C59BB#4C59BB

#4C59BB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.6% C 0.153 H 273.9°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#4C59BB
RGB	rgb(76, 89, 187)
HSL	hsl(233, 45%, 52%)
HSV	hsv(233, 59%, 73%)
CMYK	cmyk(59.4%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(41.64, 24.84, -53.42)
CIE-LCH	lch(41.64, 58.92, 294.94°)
OKLab	oklab(50.65% 0.0105 -0.153)
OKLCH	oklch(50.65% 0.153 273.9)
XYZ	xyz(15.5196, 12.2679, 48.5542)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C59BB #BBAE4C

analogous

#4C91BB #4C59BB #774CBB

triadic

#4C59BB #BB4C59 #59BB4C

tetradic

#4C59BB #BB4C91 #BBAE4C #4CBB77

square

#4C59BB #BB4C91 #BBAE4C #4CBB77

split-complementary

#4C59BB #BB774C #91BB4C

monochromatic

#272E66 #384292 #4C59BB #7882CC #A5ABDD

Accessibility & contrast

On white

6.08

#4C59BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#4C59BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C59BB

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C59BB	#FFFFFF	#000000	##FFFFFF
##4C59BB	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2067BE

Deuteranopia (green-blind)

#005EB9

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4c59bb;
/* rgb */ color: rgb(76, 89, 187);
/* oklch */ color: oklch(50.6% 0.153 273.9);

Tailwind

colors: {
  custom: {
    50: '#8887d0',
    500: '#4c59bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c59bb;
$custom-light: #8887d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c59bb",
  "rgb": {
    "r": 76,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 232.973,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50646,
    "c": 0.15335,
    "h": 273.9
  },
  "luminance": 0.12269
}

Semantic roles & 50–950 ramp

primary

#4C59BB

secondary

#CAC499

accent

#C553D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4C59BB

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

Preview Lab → · Contrast checker → · Palette generator →