#4751BB#4751BB

#4751BB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.8% C 0.165 H 274.4°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#4751BB
RGB	rgb(71, 81, 187)
HSL	hsl(235, 46%, 51%)
HSV	hsv(235, 62%, 73%)
CMYK	cmyk(62%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(39.26, 29.02, -57.28)
CIE-LCH	lch(39.26, 64.21, 296.87°)
OKLab	oklab(48.78% 0.0128 -0.1646)
OKLCH	oklch(48.78% 0.165 274.4)
XYZ	xyz(14.5077, 10.8111, 48.3263)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4751BB #BBB147

analogous

#478BBB #4751BB #7747BB

triadic

#4751BB #BB4751 #51BB47

tetradic

#4751BB #BB478B #BBB147 #47BB77

square

#4751BB #BB478B #BBB147 #47BB77

split-complementary

#4751BB #BB7747 #8BBB47

monochromatic

#252A63 #353D90 #4751BB #747BCC #A0A6DC

Accessibility & contrast

On white

6.64

#4751BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#4751BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4751BB

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4751BB	#FFFFFF	#000000	##FFFFFF
##4751BB	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4751bb;
/* rgb */ color: rgb(71, 81, 187);
/* oklch */ color: oklch(48.8% 0.165 274.4);

Tailwind

colors: {
  custom: {
    50: '#8681d0',
    500: '#4751bb',
    950: '#000000',
  },
}

SCSS

$custom: #4751bb;
$custom-light: #8681d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4751bb",
  "rgb": {
    "r": 71,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 234.828,
    "s": 46.032,
    "l": 50.588
  },
  "oklch": {
    "l": 0.4878,
    "c": 0.16506,
    "h": 274.4
  },
  "luminance": 0.10812
}

Semantic roles & 50–950 ramp

primary

#4751BB

secondary

#C9C495

accent

#CA52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4751BB

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

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