#4557BB#4557BB

#4557BB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.8% C 0.158 H 271.8°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#4557BB
RGB	rgb(69, 87, 187)
HSL	hsl(231, 46%, 50%)
HSV	hsv(231, 63%, 73%)
CMYK	cmyk(63.1%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(40.68, 24.84, -54.98)
CIE-LCH	lch(40.68, 60.34, 294.32°)
OKLab	oklab(49.81% 0.0049 -0.1578)
OKLCH	oklch(49.81% 0.158 271.8)
XYZ	xyz(14.8291, 11.6682, 48.4748)
Luminance	0.1167 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4557BB #BBA945

analogous

#4592BB #4557BB #6E45BB

triadic

#4557BB #BB4557 #57BB45

tetradic

#4557BB #BB4592 #BBA945 #45BB6E

square

#4557BB #BB4592 #BBA945 #45BB6E

split-complementary

#4557BB #BB6E45 #92BB45

monochromatic

#242D62 #34428F #4557BB #727FCB #9FA8DC

Accessibility & contrast

On white

6.30

#4557BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#4557BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4557BB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4557BB	#FFFFFF	#000000	##FFFFFF
##4557BB	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1565BF

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4557bb;
/* rgb */ color: rgb(69, 87, 187);
/* oklch */ color: oklch(49.8% 0.158 271.8);

Tailwind

colors: {
  custom: {
    50: '#8586d0',
    500: '#4557bb',
    950: '#000000',
  },
}

SCSS

$custom: #4557bb;
$custom-light: #8586d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4557bb",
  "rgb": {
    "r": 69,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 230.847,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.49813,
    "c": 0.15786,
    "h": 271.8
  },
  "luminance": 0.11669
}

Semantic roles & 50–950 ramp

primary

#4557BB

secondary

#C8C094

accent

#C252D6

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4557BB

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

Preview Lab → · Contrast checker → · Palette generator →