#4F57BC#4F57BC

#4F57BC is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.157 H 275.9°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#4F57BC
RGB	rgb(79, 87, 188)
HSL	hsl(236, 45%, 52%)
HSV	hsv(236, 58%, 74%)
CMYK	cmyk(58%, 53.7%, 0%, 26.3%)
CIE-LAB	lab(41.39, 27.02, -54.40)
CIE-LCH	lch(41.39, 60.74, 296.41°)
OKLab	oklab(50.53% 0.016 -0.1558)
OKLCH	oklch(50.53% 0.157 275.9)
XYZ	xyz(15.7068, 12.1084, 49.0767)
Luminance	0.1211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57BC #BCB44F

analogous

#4F8EBC #4F57BC #7D4FBC

triadic

#4F57BC #BC4F57 #57BC4F

tetradic

#4F57BC #BC4F8E #BCB44F #4FBC7D

square

#4F57BC #BC4F8E #BCB44F #4FBC7D

split-complementary

#4F57BC #BC7D4F #8EBC4F

monochromatic

#282D69 #394095 #4F57BC #7B81CD #A8ACDE

Accessibility & contrast

On white

6.14

#4F57BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#4F57BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57BC

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57BC	#FFFFFF	#000000	##FFFFFF
##4F57BC	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1866C0

Deuteranopia (green-blind)

#005DBA

Tritanopia (blue-blind)

#036E81

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4f57bc;
/* rgb */ color: rgb(79, 87, 188);
/* oklch */ color: oklch(50.5% 0.157 275.9);

Tailwind

colors: {
  custom: {
    50: '#8a86d1',
    500: '#4f57bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f57bc;
$custom-light: #8a86d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57bc",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 188
  },
  "hsl": {
    "h": 235.596,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5053,
    "c": 0.15664,
    "h": 275.9
  },
  "luminance": 0.12109
}

Semantic roles & 50–950 ramp

primary

#4F57BC

secondary

#CBC89C

accent

#CB53D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #4F57BC

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

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