#233580#233580

#233580 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.128 H 268.9°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#233580
RGB	rgb(35, 53, 128)
HSL	hsl(228, 57%, 32%)
HSV	hsv(228, 73%, 50%)
CMYK	cmyk(72.7%, 58.6%, 0%, 49.8%)
CIE-LAB	lab(25.14, 20.20, -44.56)
CIE-LCH	lch(25.14, 48.93, 294.39°)
OKLab	oklab(36.23% -0.0026 -0.1284)
OKLCH	oklch(36.23% 0.128 268.9)
XYZ	xyz(5.8612, 4.4615, 20.9701)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233580 #806E23

analogous

#236480 #233580 #402380

triadic

#233580 #802335 #358023

tetradic

#233580 #802364 #806E23 #238040

square

#233580 #802364 #806E23 #238040

split-complementary

#233580 #804023 #648023

monochromatic

#090D20 #162150 #233580 #3049B0 #4F67CF

Accessibility & contrast

On white

11.10

#233580 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#233580 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233580

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233580	#FFFFFF	#000000	##FFFFFF
##233580	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004083

Deuteranopia (green-blind)

#00387F

Tritanopia (blue-blind)

#004755

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233580;
/* rgb */ color: rgb(35, 53, 128);
/* oklch */ color: oklch(36.2% 0.128 268.9);

Tailwind

colors: {
  custom: {
    50: '#6b6ba5',
    500: '#233580',
    950: '#000000',
  },
}

SCSS

$custom: #233580;
$custom-light: #6b6ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#233580",
  "rgb": {
    "r": 35,
    "g": 53,
    "b": 128
  },
  "hsl": {
    "h": 228.387,
    "s": 57.055,
    "l": 31.961
  },
  "oklch": {
    "l": 0.36232,
    "c": 0.12842,
    "h": 268.9
  },
  "luminance": 0.04462
}

Semantic roles & 50–950 ramp

primary

#233580

secondary

#B29F4D

accent

#C347E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #233580

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

Preview Lab → · Contrast checker → · Palette generator →