#4D57BC#4D57BC

#4D57BC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.157 H 275.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4D57BC
RGB	rgb(77, 87, 188)
HSL	hsl(235, 45%, 52%)
HSV	hsv(235, 59%, 74%)
CMYK	cmyk(59%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(41.25, 26.64, -54.62)
CIE-LCH	lch(41.25, 60.77, 296.00°)
OKLab	oklab(50.4% 0.0137 -0.1565)
OKLCH	oklch(50.4% 0.157 275)
XYZ	xyz(15.5429, 12.0238, 49.0690)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D57BC #BCB24D

analogous

#4D8EBC #4D57BC #7B4DBC

triadic

#4D57BC #BC4D57 #57BC4D

tetradic

#4D57BC #BC4D8E #BCB24D #4DBC7B

square

#4D57BC #BC4D8E #BCB24D #4DBC7B

split-complementary

#4D57BC #BC7B4D #8EBC4D

monochromatic

#272D68 #384094 #4D57BC #7981CD #A6ABDD

Accessibility & contrast

On white

6.17

#4D57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4D57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D57BC

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D57BC	#FFFFFF	#000000	##FFFFFF
##4D57BC	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1766C0

Deuteranopia (green-blind)

#005DBA

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4d57bc;
/* rgb */ color: rgb(77, 87, 188);
/* oklch */ color: oklch(50.4% 0.157 275.0);

Tailwind

colors: {
  custom: {
    50: '#8986d1',
    500: '#4d57bc',
    950: '#000000',
  },
}

SCSS

$custom: #4d57bc;
$custom-light: #8986d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4d57bc",
  "rgb": {
    "r": 77,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 234.595,
    "s": 45.306,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50395,
    "c": 0.15712,
    "h": 275
  },
  "luminance": 0.12025
}

Semantic roles & 50–950 ramp

primary

#4D57BC

secondary

#CBC69A

accent

#C953D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4D57BC

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

Preview Lab → · Contrast checker → · Palette generator →