#2333B0#2333B0

#2333B0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.5% C 0.196 H 269.0°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#2333B0
RGB	rgb(35, 51, 176)
HSL	hsl(233, 67%, 41%)
HSV	hsv(233, 80%, 69%)
CMYK	cmyk(80.1%, 71%, 0%, 31%)
CIE-LAB	lab(29.05, 39.55, -67.55)
CIE-LCH	lch(29.05, 78.28, 300.35°)
OKLab	oklab(40.45% -0.0035 -0.1957)
OKLCH	oklch(40.45% 0.196 269)
XYZ	xyz(9.7107, 5.8584, 41.6849)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2333B0 #B0A023

analogous

#237AB0 #2333B0 #5923B0

triadic

#2333B0 #B02333 #33B023

tetradic

#2333B0 #B0237A #B0A023 #23B059

square

#2333B0 #B0237A #B0A023 #23B059

split-complementary

#2333B0 #B05923 #7AB023

monochromatic

#0F154A #19247D #2333B0 #394BD8 #6C79E2

Accessibility & contrast

On white

9.67

#2333B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2333B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2333B0

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2333B0	#FFFFFF	#000000	##FFFFFF
##2333B0	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB4

Deuteranopia (green-blind)

#003EAE

Tritanopia (blue-blind)

#00566E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2333b0;
/* rgb */ color: rgb(35, 51, 176);
/* oklch */ color: oklch(40.5% 0.196 269.0);

Tailwind

colors: {
  custom: {
    50: '#776bc9',
    500: '#2333b0',
    950: '#000000',
  },
}

SCSS

$custom: #2333b0;
$custom-light: #776bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2333b0",
  "rgb": {
    "r": 35,
    "g": 51,
    "b": 176
  },
  "hsl": {
    "h": 233.191,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.40454,
    "c": 0.1957,
    "h": 269
  },
  "luminance": 0.0586
}

Semantic roles & 50–950 ramp

primary

#2333B0

secondary

#C8BD67

accent

#D63EEA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2333B0

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

Preview Lab → · Contrast checker → · Palette generator →