#4957CF#4957CF

#4957CF is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.6% C 0.184 H 273.1°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#4957CF
RGB	rgb(73, 87, 207)
HSL	hsl(234, 58%, 55%)
HSV	hsv(234, 65%, 81%)
CMYK	cmyk(64.7%, 58%, 0%, 18.8%)
CIE-LAB	lab(42.36, 32.42, -63.85)
CIE-LCH	lch(42.36, 71.61, 296.92°)
OKLab	oklab(51.59% 0.0099 -0.1838)
OKLCH	oklch(51.59% 0.184 273.1)
XYZ	xyz(17.4146, 12.7363, 60.5600)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4957CF #CFC149

analogous

#499ACF #4957CF #7E49CF

triadic

#4957CF #CF4957 #57CF49

tetradic

#4957CF #CF499A #CFC149 #49CF7E

square

#4957CF #CF499A #CFC149 #49CF7E

split-complementary

#4957CF #CF7E49 #9ACF49

monochromatic

#212A7D #2E3BAD #4957CF #7984DC #AAB0E9

Accessibility & contrast

On white

5.92

#4957CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4957CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4957CF

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4957CF	#FFFFFF	#000000	##FFFFFF
##4957CF	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD3

Deuteranopia (green-blind)

#005ECD

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4957cf;
/* rgb */ color: rgb(73, 87, 207);
/* oklch */ color: oklch(51.6% 0.184 273.1);

Tailwind

colors: {
  custom: {
    50: '#8a86df',
    500: '#4957cf',
    950: '#000000',
  },
}

SCSS

$custom: #4957cf;
$custom-light: #8a86df;
$custom-dark: #000000;

JSON

{
  "hex": "#4957cf",
  "rgb": {
    "r": 73,
    "g": 87,
    "b": 207
  },
  "hsl": {
    "h": 233.731,
    "s": 58.261,
    "l": 54.902
  },
  "oklch": {
    "l": 0.51588,
    "c": 0.18403,
    "h": 273.1
  },
  "luminance": 0.12738
}

Semantic roles & 50–950 ramp

primary

#4957CF

secondary

#D6D09E

accent

#D146E1

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4957CF

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

Preview Lab → · Contrast checker → · Palette generator →