#2333BC#2333BC

#2333BC is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 41.7% C 0.211 H 268.7°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#2333BC
RGB	rgb(35, 51, 188)
HSL	hsl(234, 69%, 44%)
HSV	hsv(234, 81%, 74%)
CMYK	cmyk(81.4%, 72.9%, 0%, 26.3%)
CIE-LAB	lab(30.29, 43.77, -72.63)
CIE-LCH	lch(30.29, 84.80, 301.08°)
OKLab	oklab(41.71% -0.0049 -0.2105)
OKLCH	oklch(41.71% 0.211 268.7)
XYZ	xyz(10.9509, 6.3545, 48.2166)
Luminance	0.0636 (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

#2333BC #BCAC23

analogous

#237FBC #2333BC #5F23BC

triadic

#2333BC #BC2333 #33BC23

tetradic

#2333BC #BC237F #BCAC23 #23BC5F

square

#2333BC #BC237F #BCAC23 #23BC5F

split-complementary

#2333BC #BC5F23 #7FBC23

monochromatic

#101755 #192588 #2333BC #4151DC #7480E5

Accessibility & contrast

On white

9.25

#2333BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#2333BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2333BC

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2333BC	#FFFFFF	#000000	##FFFFFF
##2333BC	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC0

Deuteranopia (green-blind)

#0040BA

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #2333bc;
/* rgb */ color: rgb(35, 51, 188);
/* oklch */ color: oklch(41.7% 0.211 268.7);

Tailwind

colors: {
  custom: {
    50: '#7b6cd1',
    500: '#2333bc',
    950: '#000000',
  },
}

SCSS

$custom: #2333bc;
$custom-light: #7b6cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#2333bc",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 188
  },
  "hsl": {
    "h": 233.725,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41712,
    "c": 0.21053,
    "h": 268.7
  },
  "luminance": 0.06356
}

Semantic roles & 50–950 ramp

primary

#2333BC

secondary

#CCC26F

accent

#D93CEB

background

#F8F6FD

surface

#EFEBFA

border

#CAC6D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #2333BC

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

Preview Lab → · Contrast checker → · Palette generator →