#2333B2#2333B2

#2333B2 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.7% C 0.198 H 268.9°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#2333B2
RGB	rgb(35, 51, 178)
HSL	hsl(233, 67%, 42%)
HSV	hsv(233, 80%, 70%)
CMYK	cmyk(80.3%, 71.3%, 0%, 30.2%)
CIE-LAB	lab(29.26, 40.26, -68.40)
CIE-LCH	lch(29.26, 79.38, 300.48°)
OKLab	oklab(40.66% -0.0037 -0.1982)
OKLCH	oklch(40.66% 0.198 268.9)
XYZ	xyz(9.9101, 5.9382, 42.7347)
Luminance	0.0594 (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

#2333B2 #B2A223

analogous

#237BB2 #2333B2 #5B23B2

triadic

#2333B2 #B22333 #33B223

tetradic

#2333B2 #B2237B #B2A223 #23B25B

square

#2333B2 #B2237B #B2A223 #23B25B

split-complementary

#2333B2 #B25B23 #7BB223

monochromatic

#0F164C #19247F #2333B2 #3A4CD8 #6D7AE2

Accessibility & contrast

On white

9.60

#2333B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#2333B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2333B2

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2333B2	#FFFFFF	#000000	##FFFFFF
##2333B2	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CB6

Deuteranopia (green-blind)

#003EB0

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #2333b2;
/* rgb */ color: rgb(35, 51, 178);
/* oklch */ color: oklch(40.7% 0.198 268.9);

Tailwind

colors: {
  custom: {
    50: '#786bca',
    500: '#2333b2',
    950: '#000000',
  },
}

SCSS

$custom: #2333b2;
$custom-light: #786bca;
$custom-dark: #000000;

JSON

{
  "hex": "#2333b2",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 178
  },
  "hsl": {
    "h": 233.287,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40662,
    "c": 0.1982,
    "h": 268.9
  },
  "luminance": 0.05939
}

Semantic roles & 50–950 ramp

primary

#2333B2

secondary

#C9BE68

accent

#D73EEA

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2333B2

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

Preview Lab → · Contrast checker → · Palette generator →