#4351BB#4351BB

#4351BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.5% C 0.166 H 272.9°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#4351BB
RGB	rgb(67, 81, 187)
HSL	hsl(233, 47%, 50%)
HSV	hsv(233, 64%, 73%)
CMYK	cmyk(64.2%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(39.01, 28.35, -57.70)
CIE-LCH	lch(39.01, 64.29, 296.16°)
OKLab	oklab(48.53% 0.0084 -0.1659)
OKLCH	oklch(48.53% 0.166 272.9)
XYZ	xyz(14.2238, 10.6648, 48.3130)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4351BB #BBAD43

analogous

#438DBB #4351BB #7143BB

triadic

#4351BB #BB4351 #51BB43

tetradic

#4351BB #BB438D #BBAD43 #43BB71

square

#4351BB #BB438D #BBAD43 #43BB71

split-complementary

#4351BB #BB7143 #8DBB43

monochromatic

#232A61 #333D8E #4351BB #707ACC #9DA4DC

Accessibility & contrast

On white

6.70

#4351BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#4351BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4351BB

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4351BB	#FFFFFF	#000000	##FFFFFF
##4351BB	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006A7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4351bb;
/* rgb */ color: rgb(67, 81, 187);
/* oklch */ color: oklch(48.5% 0.166 272.9);

Tailwind

colors: {
  custom: {
    50: '#8481d0',
    500: '#4351bb',
    950: '#000000',
  },
}

SCSS

$custom: #4351bb;
$custom-light: #8481d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4351bb",
  "rgb": {
    "r": 67,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 233,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48527,
    "c": 0.1661,
    "h": 272.9
  },
  "luminance": 0.10666
}

Semantic roles & 50–950 ramp

primary

#4351BB

secondary

#C8C292

accent

#C751D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4351BB

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

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