#4551CB#4551CB

#4551CB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.9% C 0.187 H 273.2°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#4551CB
RGB	rgb(69, 81, 203)
HSL	hsl(235, 56%, 53%)
HSV	hsv(235, 66%, 80%)
CMYK	cmyk(66%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(40.35, 34.20, -64.84)
CIE-LCH	lch(40.35, 73.30, 297.81°)
OKLab	oklab(49.93% 0.0106 -0.1868)
OKLCH	oklch(49.93% 0.187 273.2)
XYZ	xyz(16.1726, 11.4604, 57.8481)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4551CB #CBBF45

analogous

#4594CB #4551CB #7C45CB

triadic

#4551CB #CB4551 #51CB45

tetradic

#4551CB #CB4594 #CBBF45 #45CB7C

square

#4551CB #CB4594 #CBBF45 #45CB7C

split-complementary

#4551CB #CB7C45 #94CB45

monochromatic

#212875 #2E39A5 #4551CB #757ED8 #A5AAE6

Accessibility & contrast

On white

6.38

#4551CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#4551CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4551CB

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4551CB	#FFFFFF	#000000	##FFFFFF
##4551CB	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#0059C9

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4551cb;
/* rgb */ color: rgb(69, 81, 203);
/* oklch */ color: oklch(49.9% 0.187 273.2);

Tailwind

colors: {
  custom: {
    50: '#8882dc',
    500: '#4551cb',
    950: '#000000',
  },
}

SCSS

$custom: #4551cb;
$custom-light: #8882dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4551cb",
  "rgb": {
    "r": 69,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 234.627,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.49933,
    "c": 0.18712,
    "h": 273.2
  },
  "luminance": 0.11462
}

Semantic roles & 50–950 ramp

primary

#4551CB

secondary

#D3CE99

accent

#D248E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4551CB

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

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