#4551AA#4551AA

#4551AA is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.4% C 0.142 H 273.9°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#4551AA
RGB	rgb(69, 81, 170)
HSL	hsl(233, 42%, 47%)
HSV	hsv(233, 59%, 67%)
CMYK	cmyk(59.4%, 52.4%, 0%, 33.3%)
CIE-LAB	lab(37.93, 22.81, -49.40)
CIE-LCH	lch(37.93, 54.41, 294.78°)
OKLab	oklab(47.37% 0.0097 -0.1414)
OKLCH	oklch(47.37% 0.142 273.9)
XYZ	xyz(12.6500, 10.0514, 39.2959)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4551AA #AA9E45

analogous

#4584AA #4551AA #6C45AA

triadic

#4551AA #AA4551 #51AA45

tetradic

#4551AA #AA4584 #AA9E45 #45AA6C

square

#4551AA #AA4584 #AA9E45 #45AA6C

split-complementary

#4551AA #AA6C45 #84AA45

monochromatic

#222853 #333C7E #4551AA #6A74C2 #959DD4

Accessibility & contrast

On white

6.98

#4551AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#4551AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4551AA

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4551AA	#FFFFFF	#000000	##FFFFFF
##4551AA	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5EAD

Deuteranopia (green-blind)

#0355A8

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4551aa;
/* rgb */ color: rgb(69, 81, 170);
/* oklch */ color: oklch(47.4% 0.142 273.9);

Tailwind

colors: {
  custom: {
    50: '#8281c4',
    500: '#4551aa',
    950: '#000000',
  },
}

SCSS

$custom: #4551aa;
$custom-light: #8281c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4551aa",
  "rgb": {
    "r": 69,
    "g": 81,
    "b": 170
  },
  "hsl": {
    "h": 232.871,
    "s": 42.259,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47372,
    "c": 0.14176,
    "h": 273.9
  },
  "luminance": 0.10052
}

Semantic roles & 50–950 ramp

primary

#4551AA

secondary

#C0BA8B

accent

#C356D2

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4551AA

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

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