#233CB2#233CB2

#233CB2 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.188 H 267.6°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#233CB2
RGB	rgb(35, 60, 178)
HSL	hsl(230, 67%, 42%)
HSV	hsv(230, 80%, 70%)
CMYK	cmyk(80.3%, 66.3%, 0%, 30.2%)
CIE-LAB	lab(31.35, 34.60, -64.95)
CIE-LCH	lch(31.35, 73.60, 298.04°)
OKLab	oklab(42.18% -0.0079 -0.1881)
OKLCH	oklch(42.18% 0.188 267.6)
XYZ	xyz(10.3421, 6.8022, 42.8787)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233CB2 #B29923

analogous

#2384B2 #233CB2 #5123B2

triadic

#233CB2 #B2233C #3CB223

tetradic

#233CB2 #B22384 #B29923 #23B251

square

#233CB2 #B22384 #B29923 #23B251

split-complementary

#233CB2 #B25123 #84B223

monochromatic

#0F1A4C #192B7F #233CB2 #3A56D8 #6D82E2

Accessibility & contrast

On white

8.90

#233CB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#233CB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233CB2

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233CB2	#FFFFFF	#000000	##FFFFFF
##233CB2	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0043B0

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #233cb2;
/* rgb */ color: rgb(35, 60, 178);
/* oklch */ color: oklch(42.2% 0.188 267.6);

Tailwind

colors: {
  custom: {
    50: '#7771ca',
    500: '#233cb2',
    950: '#000000',
  },
}

SCSS

$custom: #233cb2;
$custom-light: #7771ca;
$custom-dark: #000000;

JSON

{
  "hex": "#233cb2",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 178
  },
  "hsl": {
    "h": 229.51,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42184,
    "c": 0.18824,
    "h": 267.6
  },
  "luminance": 0.06803
}

Semantic roles & 50–950 ramp

primary

#233CB2

secondary

#C9B868

accent

#CC3EEA

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233CB2

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

Preview Lab → · Contrast checker → · Palette generator →