#4233BF#4233BF

#4233BF is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.8% C 0.207 H 278.4°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#4233BF
RGB	rgb(66, 51, 191)
HSL	hsl(246, 58%, 47%)
HSV	hsv(246, 73%, 75%)
CMYK	cmyk(65.4%, 73.3%, 0%, 25.1%)
CIE-LAB	lab(32.45, 47.66, -70.78)
CIE-LCH	lch(32.45, 85.33, 303.96°)
OKLab	oklab(43.83% 0.0302 -0.2044)
OKLCH	oklch(43.83% 0.207 278.4)
XYZ	xyz(12.8315, 7.2864, 50.0103)
Luminance	0.0729 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4233BF #B0BF33

analogous

#336ABF #4233BF #8833BF

triadic

#4233BF #BF4233 #33BF42

tetradic

#4233BF #BF336A #B0BF33 #33BF88

square

#4233BF #BF336A #B0BF33 #33BF88

split-complementary

#4233BF #BF8833 #6ABF33

monochromatic

#21195E #31268F #4233BF #695CD3 #958CE0

Accessibility & contrast

On white

8.55

#4233BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#4233BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233BF

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233BF	#FFFFFF	#000000	##FFFFFF
##4233BF	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C3

Deuteranopia (green-blind)

#0047BC

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4233bf;
/* rgb */ color: rgb(66, 51, 191);
/* oklch */ color: oklch(43.8% 0.207 278.4);

Tailwind

colors: {
  custom: {
    50: '#876dd4',
    500: '#4233bf',
    950: '#000000',
  },
}

SCSS

$custom: #4233bf;
$custom-light: #876dd4;
$custom-dark: #000000;

JSON

{
  "hex": "#4233bf",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 191
  },
  "hsl": {
    "h": 246.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43833,
    "c": 0.20658,
    "h": 278.4
  },
  "luminance": 0.07287
}

Semantic roles & 50–950 ramp

primary

#4233BF

secondary

#C3CB83

accent

#E147D1

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4233BF

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

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