#4233B4#4233B4

#4233B4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.8% C 0.193 H 279.6°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#4233B4
RGB	rgb(66, 51, 180)
HSL	hsl(247, 56%, 45%)
HSV	hsv(247, 72%, 71%)
CMYK	cmyk(63.3%, 71.7%, 0%, 29.4%)
CIE-LAB	lab(31.39, 44.20, -66.01)
CIE-LCH	lch(31.39, 79.44, 303.81°)
OKLab	oklab(42.76% 0.0324 -0.1904)
OKLCH	oklch(42.76% 0.193 279.6)
XYZ	xyz(11.6662, 6.8203, 43.8728)
Luminance	0.0682 (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

#4233B4 #A5B433

analogous

#3364B4 #4233B4 #8333B4

triadic

#4233B4 #B44233 #33B442

tetradic

#4233B4 #B43364 #A5B433 #33B483

square

#4233B4 #B43364 #A5B433 #33B483

split-complementary

#4233B4 #B48333 #64B433

monochromatic

#1F1855 #312584 #4233B4 #6355CF #8F85DC

Accessibility & contrast

On white

8.88

#4233B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#4233B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B4

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233B4	#FFFFFF	#000000	##FFFFFF
##4233B4	1.00	8.88	2.36	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#005670

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4233b4;
/* rgb */ color: rgb(66, 51, 180);
/* oklch */ color: oklch(42.8% 0.193 279.6);

Tailwind

colors: {
  custom: {
    50: '#846dcc',
    500: '#4233b4',
    950: '#000000',
  },
}

SCSS

$custom: #4233b4;
$custom-light: #846dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4233b4",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 180
  },
  "hsl": {
    "h": 246.977,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42763,
    "c": 0.19316,
    "h": 279.6
  },
  "luminance": 0.06821
}

Semantic roles & 50–950 ramp

primary

#4233B4

secondary

#BDC67D

accent

#DF49CE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4233B4

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

Preview Lab → · Contrast checker → · Palette generator →