#4E75CB#4E75CB

#4E75CB is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.6% C 0.140 H 264.1°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4E75CB
RGB	rgb(78, 117, 203)
HSL	hsl(221, 55%, 55%)
HSV	hsv(221, 62%, 80%)
CMYK	cmyk(61.6%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(50.28, 13.09, -48.80)
CIE-LCH	lch(50.28, 50.52, 285.02°)
OKLab	oklab(57.58% -0.0143 -0.139)
OKLCH	oklch(57.58% 0.14 264.1)
XYZ	xyz(20.2789, 18.6523, 59.0199)
Luminance	0.1865 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E75CB #CBA44E

analogous

#4EB3CB #4E75CB #654ECB

triadic

#4E75CB #CB4E75 #75CB4E

tetradic

#4E75CB #CB4EB3 #CBA44E #4ECB65

square

#4E75CB #CB4EB3 #CBA44E #4ECB65

split-complementary

#4E75CB #CB654E #B3CB4E

monochromatic

#243F7B #3257AA #4E75CB #7D9AD9 #ADBFE7

Accessibility & contrast

On white

4.44

#4E75CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#4E75CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E75CB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E75CB	#FFFFFF	#000000	##000000
##4E75CB	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7ECE

Deuteranopia (green-blind)

#3C72C9

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4e75cb;
/* rgb */ color: rgb(78, 117, 203);
/* oklch */ color: oklch(57.6% 0.140 264.1);

Tailwind

colors: {
  custom: {
    50: '#8a9cdb',
    500: '#4e75cb',
    950: '#000000',
  },
}

SCSS

$custom: #4e75cb;
$custom-light: #8a9cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e75cb",
  "rgb": {
    "r": 78,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 221.28,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.57575,
    "c": 0.13975,
    "h": 264.1
  },
  "luminance": 0.18654
}

Semantic roles & 50–950 ramp

primary

#4E75CB

secondary

#D5C4A0

accent

#B04ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4E75CB

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

Preview Lab → · Contrast checker → · Palette generator →