#4E57A5#4E57A5

#4E57A5 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.9% C 0.124 H 275.9°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#4E57A5
RGB	rgb(78, 87, 165)
HSL	hsl(234, 36%, 48%)
HSV	hsv(234, 53%, 65%)
CMYK	cmyk(52.7%, 47.3%, 0%, 35.3%)
CIE-LAB	lab(39.84, 19.17, -43.35)
CIE-LCH	lch(39.84, 47.40, 293.86°)
OKLab	oklab(48.86% 0.0127 -0.1233)
OKLCH	oklch(48.86% 0.124 275.9)
XYZ	xyz(13.3395, 11.1519, 37.0396)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57A5 #A59C4E

analogous

#4E82A5 #4E57A5 #704EA5

triadic

#4E57A5 #A54E57 #57A54E

tetradic

#4E57A5 #A54E82 #A59C4E #4EA570

square

#4E57A5 #A54E82 #A59C4E #4EA570

split-complementary

#4E57A5 #A5704E #82A54E

monochromatic

#272B52 #3A417B #4E57A5 #737BBD #9DA2D1

Accessibility & contrast

On white

6.50

#4E57A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#4E57A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57A5

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57A5	#FFFFFF	#000000	##FFFFFF
##4E57A5	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3462A8

Deuteranopia (green-blind)

#2B5AA3

Tritanopia (blue-blind)

#286876

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4e57a5;
/* rgb */ color: rgb(78, 87, 165);
/* oklch */ color: oklch(48.9% 0.124 275.9);

Tailwind

colors: {
  custom: {
    50: '#8686c0',
    500: '#4e57a5',
    950: '#000000',
  },
}

SCSS

$custom: #4e57a5;
$custom-light: #8686c0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57a5",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 165
  },
  "hsl": {
    "h": 233.793,
    "s": 35.802,
    "l": 47.647
  },
  "oklch": {
    "l": 0.48865,
    "c": 0.124,
    "h": 275.9
  },
  "luminance": 0.11153
}

Semantic roles & 50–950 ramp

primary

#4E57A5

secondary

#BDB991

accent

#C05CCC

background

#F8F8FB

surface

#F0EFF7

border

#CBCAD0

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #4E57A5

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

Preview Lab → · Contrast checker → · Palette generator →