#233C9C#233C9C

#233C9C is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.159 H 267.4°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#233C9C
RGB	rgb(35, 60, 156)
HSL	hsl(228, 63%, 37%)
HSV	hsv(228, 78%, 61%)
CMYK	cmyk(77.6%, 61.5%, 0%, 38.8%)
CIE-LAB	lab(29.38, 26.28, -54.95)
CIE-LCH	lch(29.38, 60.91, 295.56°)
OKLab	oklab(40.13% -0.0073 -0.1588)
OKLCH	oklch(40.13% 0.159 267.4)
XYZ	xyz(8.3077, 5.9884, 32.1641)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C9C #9C8323

analogous

#23799C #233C9C #46239C

triadic

#233C9C #9C233C #3C9C23

tetradic

#233C9C #9C2379 #9C8323 #239C46

square

#233C9C #9C2379 #9C8323 #239C46

split-complementary

#233C9C #9C4623 #799C23

monochromatic

#0D1638 #18296A #233C9C #2E4FCE #5E78DB

Accessibility & contrast

On white

9.56

#233C9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#233C9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C9C

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C9C	#FFFFFF	#000000	##FFFFFF
##233C9C	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9F

Deuteranopia (green-blind)

#00409A

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233c9c;
/* rgb */ color: rgb(35, 60, 156);
/* oklch */ color: oklch(40.1% 0.159 267.4);

Tailwind

colors: {
  custom: {
    50: '#7171ba',
    500: '#233c9c',
    950: '#000000',
  },
}

SCSS

$custom: #233c9c;
$custom-light: #7171ba;
$custom-dark: #000000;

JSON

{
  "hex": "#233c9c",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 156
  },
  "hsl": {
    "h": 227.603,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40126,
    "c": 0.15897,
    "h": 267.4
  },
  "luminance": 0.05989
}

Semantic roles & 50–950 ramp

primary

#233C9C

secondary

#C0AB5B

accent

#C441E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233C9C

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

Preview Lab → · Contrast checker → · Palette generator →