#233BB2#233BB2

#233BB2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.189 H 267.8°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#233BB2
RGB	rgb(35, 59, 178)
HSL	hsl(230, 67%, 42%)
HSV	hsv(230, 80%, 70%)
CMYK	cmyk(80.3%, 66.9%, 0%, 30.2%)
CIE-LAB	lab(31.11, 35.24, -65.35)
CIE-LCH	lch(31.11, 74.25, 298.34°)
OKLab	oklab(42.01% -0.0074 -0.1892)
OKLCH	oklch(42.01% 0.189 267.8)
XYZ	xyz(10.2902, 6.6984, 42.8614)
Luminance	0.0670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BB2 #B29A23

analogous

#2383B2 #233BB2 #5323B2

triadic

#233BB2 #B2233B #3BB223

tetradic

#233BB2 #B22383 #B29A23 #23B253

square

#233BB2 #B22383 #B29A23 #23B253

split-complementary

#233BB2 #B25323 #83B223

monochromatic

#0F194C #192A7F #233BB2 #3A55D8 #6D81E2

Accessibility & contrast

On white

8.97

#233BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#233BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BB2

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BB2	#FFFFFF	#000000	##FFFFFF
##233BB2	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0042B0

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #233bb2;
/* rgb */ color: rgb(35, 59, 178);
/* oklch */ color: oklch(42.0% 0.189 267.8);

Tailwind

colors: {
  custom: {
    50: '#7771ca',
    500: '#233bb2',
    950: '#000000',
  },
}

SCSS

$custom: #233bb2;
$custom-light: #7771ca;
$custom-dark: #000000;

JSON

{
  "hex": "#233bb2",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 178
  },
  "hsl": {
    "h": 229.93,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42007,
    "c": 0.18939,
    "h": 267.8
  },
  "luminance": 0.067
}

Semantic roles & 50–950 ramp

primary

#233BB2

secondary

#C9B868

accent

#CD3EEA

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233BB2

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

Preview Lab → · Contrast checker → · Palette generator →