#4551BC#4551BC

#4551BC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.7% C 0.167 H 273.6°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#4551BC
RGB	rgb(69, 81, 188)
HSL	hsl(234, 47%, 50%)
HSV	hsv(234, 63%, 74%)
CMYK	cmyk(63.3%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(39.21, 29.02, -57.96)
CIE-LCH	lch(39.21, 64.82, 296.60°)
OKLab	oklab(48.73% 0.0106 -0.1666)
OKLCH	oklch(48.73% 0.167 273.6)
XYZ	xyz(14.4708, 10.7797, 48.8853)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4551BC #BCB045

analogous

#458CBC #4551BC #7545BC

triadic

#4551BC #BC4551 #51BC45

tetradic

#4551BC #BC458C #BCB045 #45BC75

square

#4551BC #BC458C #BCB045 #45BC75

split-complementary

#4551BC #BC7545 #8CBC45

monochromatic

#242A63 #343D90 #4551BC #727BCC #9FA5DC

Accessibility & contrast

On white

6.65

#4551BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#4551BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4551BC

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4551BC	#FFFFFF	#000000	##FFFFFF
##4551BC	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4551bc;
/* rgb */ color: rgb(69, 81, 188);
/* oklch */ color: oklch(48.7% 0.167 273.6);

Tailwind

colors: {
  custom: {
    50: '#8581d1',
    500: '#4551bc',
    950: '#000000',
  },
}

SCSS

$custom: #4551bc;
$custom-light: #8581d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4551bc",
  "rgb": {
    "r": 69,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 233.95,
    "s": 47.036,
    "l": 50.392
  },
  "oklch": {
    "l": 0.4873,
    "c": 0.16695,
    "h": 273.6
  },
  "luminance": 0.10781
}

Semantic roles & 50–950 ramp

primary

#4551BC

secondary

#C9C494

accent

#C951D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4551BC

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

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