#4F57BD#4F57BD

#4F57BD is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.6% C 0.158 H 275.8°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#4F57BD
RGB	rgb(79, 87, 189)
HSL	hsl(236, 45%, 53%)
HSV	hsv(236, 58%, 74%)
CMYK	cmyk(58.2%, 54%, 0%, 25.9%)
CIE-LAB	lab(41.46, 27.35, -54.87)
CIE-LCH	lch(41.46, 61.31, 296.50°)
OKLab	oklab(50.6% 0.016 -0.1572)
OKLCH	oklch(50.6% 0.158 275.8)
XYZ	xyz(15.8150, 12.1516, 49.6464)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57BD #BDB54F

analogous

#4F8EBD #4F57BD #7E4FBD

triadic

#4F57BD #BD4F57 #57BD4F

tetradic

#4F57BD #BD4F8E #BDB54F #4FBD7E

square

#4F57BD #BD4F8E #BDB54F #4FBD7E

split-complementary

#4F57BD #BD7E4F #8EBD4F

monochromatic

#282D6A #383F96 #4F57BD #7C81CE #A8ACDE

Accessibility & contrast

On white

6.12

#4F57BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#4F57BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57BD

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57BD	#FFFFFF	#000000	##FFFFFF
##4F57BD	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1667C1

Deuteranopia (green-blind)

#005DBB

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4f57bd;
/* rgb */ color: rgb(79, 87, 189);
/* oklch */ color: oklch(50.6% 0.158 275.8);

Tailwind

colors: {
  custom: {
    50: '#8a86d2',
    500: '#4f57bd',
    950: '#000000',
  },
}

SCSS

$custom: #4f57bd;
$custom-light: #8a86d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57bd",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 235.636,
    "s": 45.455,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50603,
    "c": 0.15802,
    "h": 275.8
  },
  "luminance": 0.12153
}

Semantic roles & 50–950 ramp

primary

#4F57BD

secondary

#CCC89C

accent

#CC53D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0D0B14

muted

#7D7C82

Preview Lab

Preview with #4F57BD

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

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