#4F57BA#4F57BA

#4F57BA is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.154 H 275.9°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4F57BA
RGB	rgb(79, 87, 186)
HSL	hsl(236, 44%, 52%)
HSV	hsv(236, 58%, 73%)
CMYK	cmyk(57.5%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(41.25, 26.35, -53.45)
CIE-LCH	lch(41.25, 59.59, 296.24°)
OKLab	oklab(50.39% 0.0159 -0.153)
OKLCH	oklch(50.39% 0.154 275.9)
XYZ	xyz(15.4927, 12.0227, 47.9491)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57BA #BAB24F

analogous

#4F8DBA #4F57BA #7D4FBA

triadic

#4F57BA #BA4F57 #57BA4F

tetradic

#4F57BA #BA4F8D #BAB24F #4FBA7D

square

#4F57BA #BA4F8D #BAB24F #4FBA7D

split-complementary

#4F57BA #BA7D4F #8DBA4F

monochromatic

#282D66 #394092 #4F57BA #7B81CB #A7ABDC

Accessibility & contrast

On white

6.17

#4F57BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4F57BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57BA

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57BA	#FFFFFF	#000000	##FFFFFF
##4F57BA	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C66BD

Deuteranopia (green-blind)

#005DB8

Tritanopia (blue-blind)

#0A6E80

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4f57ba;
/* rgb */ color: rgb(79, 87, 186);
/* oklch */ color: oklch(50.4% 0.154 275.9);

Tailwind

colors: {
  custom: {
    50: '#8986cf',
    500: '#4f57ba',
    950: '#000000',
  },
}

SCSS

$custom: #4f57ba;
$custom-light: #8986cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57ba",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 235.514,
    "s": 43.673,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50385,
    "c": 0.15384,
    "h": 275.9
  },
  "luminance": 0.12024
}

Semantic roles & 50–950 ramp

primary

#4F57BA

secondary

#CAC69B

accent

#CA54D3

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4F57BA

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

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