#233C6F#233C6F

#233C6F is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.093 H 262.9°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#233C6F
RGB	rgb(35, 60, 111)
HSL	hsl(220, 52%, 29%)
HSV	hsv(220, 68%, 44%)
CMYK	cmyk(68.5%, 45.9%, 0%, 56.5%)
CIE-LAB	lab(25.97, 8.63, -32.46)
CIE-LCH	lch(25.97, 33.59, 284.89°)
OKLab	oklab(36.47% -0.0115 -0.0927)
OKLCH	oklch(36.47% 0.093 262.9)
XYZ	xyz(5.1772, 4.7362, 15.6772)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C6F #6F5623

analogous

#23626F #233C6F #30236F

triadic

#233C6F #6F233C #3C6F23

tetradic

#233C6F #6F2362 #6F5623 #236F30

square

#233C6F #6F2362 #6F5623 #236F30

split-complementary

#233C6F #6F3023 #626F23

monochromatic

#070D17 #142340 #233C6F #32559E #4771C5

Accessibility & contrast

On white

10.78

#233C6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#233C6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C6F

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C6F	#FFFFFF	#000000	##FFFFFF
##233C6F	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244171

Deuteranopia (green-blind)

#173A6E

Tritanopia (blue-blind)

#004850

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233c6f;
/* rgb */ color: rgb(35, 60, 111);
/* oklch */ color: oklch(36.5% 0.093 262.9);

Tailwind

colors: {
  custom: {
    50: '#677199',
    500: '#233c6f',
    950: '#000000',
  },
}

SCSS

$custom: #233c6f;
$custom-light: #677199;
$custom-dark: #000000;

JSON

{
  "hex": "#233c6f",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 111
  },
  "hsl": {
    "h": 220.263,
    "s": 52.055,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36466,
    "c": 0.09339,
    "h": 262.9
  },
  "luminance": 0.04737
}

Semantic roles & 50–950 ramp

primary

#233C6F

secondary

#A2864C

accent

#AC4CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #233C6F

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

Preview Lab → · Contrast checker → · Palette generator →