#233C9A#233C9A

#233C9A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.156 H 267.3°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#233C9A
RGB	rgb(35, 60, 154)
HSL	hsl(227, 63%, 37%)
HSV	hsv(227, 77%, 60%)
CMYK	cmyk(77.3%, 61%, 0%, 39.6%)
CIE-LAB	lab(29.21, 25.51, -54.01)
CIE-LCH	lch(29.21, 59.73, 295.28°)
OKLab	oklab(39.95% -0.0073 -0.156)
OKLCH	oklch(39.95% 0.156 267.3)
XYZ	xyz(8.1397, 5.9212, 31.2795)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C9A #9A8123

analogous

#23789A #233C9A #46239A

triadic

#233C9A #9A233C #3C9A23

tetradic

#233C9A #9A2378 #9A8123 #239A46

square

#233C9A #9A2378 #9A8123 #239A46

split-complementary

#233C9A #9A4623 #789A23

monochromatic

#0C1536 #182968 #233C9A #2E4FCC #5D77DA

Accessibility & contrast

On white

9.61

#233C9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#233C9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C9A

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C9A	#FFFFFF	#000000	##FFFFFF
##233C9A	1.00	9.61	2.18	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#005465

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233c9a;
/* rgb */ color: rgb(35, 60, 154);
/* oklch */ color: oklch(39.9% 0.156 267.3);

Tailwind

colors: {
  custom: {
    50: '#7171b9',
    500: '#233c9a',
    950: '#000000',
  },
}

SCSS

$custom: #233c9a;
$custom-light: #7171b9;
$custom-dark: #000000;

JSON

{
  "hex": "#233c9a",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 154
  },
  "hsl": {
    "h": 227.395,
    "s": 62.963,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39947,
    "c": 0.15621,
    "h": 267.3
  },
  "luminance": 0.05922
}

Semantic roles & 50–950 ramp

primary

#233C9A

secondary

#BFAA5A

accent

#C442E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #233C9A

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

Preview Lab → · Contrast checker → · Palette generator →