#233AB2#233AB2

#233AB2 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.191 H 267.9°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#233AB2
RGB	rgb(35, 58, 178)
HSL	hsl(230, 67%, 42%)
HSV	hsv(230, 80%, 70%)
CMYK	cmyk(80.3%, 67.4%, 0%, 30.2%)
CIE-LAB	lab(30.87, 35.88, -65.75)
CIE-LCH	lch(30.87, 74.90, 298.62°)
OKLab	oklab(41.83% -0.0069 -0.1904)
OKLCH	oklch(41.83% 0.191 267.9)
XYZ	xyz(10.2393, 6.5966, 42.8445)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233AB2 #B29B23

analogous

#2382B2 #233AB2 #5423B2

triadic

#233AB2 #B2233A #3AB223

tetradic

#233AB2 #B22382 #B29B23 #23B254

square

#233AB2 #B22382 #B29B23 #23B254

split-complementary

#233AB2 #B25423 #82B223

monochromatic

#0F194C #19297F #233AB2 #3A53D8 #6D80E2

Accessibility & contrast

On white

9.05

#233AB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#233AB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233AB2

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233AB2	#FFFFFF	#000000	##FFFFFF
##233AB2	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	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: #233ab2;
/* rgb */ color: rgb(35, 58, 178);
/* oklch */ color: oklch(41.8% 0.191 267.9);

Tailwind

colors: {
  custom: {
    50: '#7770ca',
    500: '#233ab2',
    950: '#000000',
  },
}

SCSS

$custom: #233ab2;
$custom-light: #7770ca;
$custom-dark: #000000;

JSON

{
  "hex": "#233ab2",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 178
  },
  "hsl": {
    "h": 230.35,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41832,
    "c": 0.19053,
    "h": 267.9
  },
  "luminance": 0.06598
}

Semantic roles & 50–950 ramp

primary

#233AB2

secondary

#C9B968

accent

#CE3EEA

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #233AB2

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

Preview Lab → · Contrast checker → · Palette generator →