#233D9A#233D9A

#233D9A is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.155 H 267.0°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#233D9A
RGB	rgb(35, 61, 154)
HSL	hsl(227, 63%, 37%)
HSV	hsv(227, 77%, 60%)
CMYK	cmyk(77.3%, 60.4%, 0%, 39.6%)
CIE-LAB	lab(29.48, 24.83, -53.58)
CIE-LCH	lch(29.48, 59.05, 294.87°)
OKLab	oklab(40.15% -0.008 -0.1547)
OKLCH	oklch(40.15% 0.155 267)
XYZ	xyz(8.1926, 6.0270, 31.2971)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D9A #9A8023

analogous

#23799A #233D9A #45239A

triadic

#233D9A #9A233D #3D9A23

tetradic

#233D9A #9A2379 #9A8023 #239A45

square

#233D9A #9A2379 #9A8023 #239A45

split-complementary

#233D9A #9A4523 #799A23

monochromatic

#0C1536 #182968 #233D9A #2E51CC #5D78DA

Accessibility & contrast

On white

9.52

#233D9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#233D9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D9A

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D9A	#FFFFFF	#000000	##FFFFFF
##233D9A	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9D

Deuteranopia (green-blind)

#004098

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233d9a;
/* rgb */ color: rgb(35, 61, 154);
/* oklch */ color: oklch(40.1% 0.155 267.0);

Tailwind

colors: {
  custom: {
    50: '#7172b9',
    500: '#233d9a',
    950: '#000000',
  },
}

SCSS

$custom: #233d9a;
$custom-light: #7172b9;
$custom-dark: #000000;

JSON

{
  "hex": "#233d9a",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 154
  },
  "hsl": {
    "h": 226.891,
    "s": 62.963,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40146,
    "c": 0.15496,
    "h": 267
  },
  "luminance": 0.06028
}

Semantic roles & 50–950 ramp

primary

#233D9A

secondary

#BFA95A

accent

#C242E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #233D9A

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

Preview Lab → · Contrast checker → · Palette generator →