#233C7C#233C7C

#233C7C is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.113 H 265.3°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#233C7C
RGB	rgb(35, 60, 124)
HSL	hsl(223, 56%, 31%)
HSV	hsv(223, 72%, 49%)
CMYK	cmyk(71.8%, 51.6%, 0%, 51.4%)
CIE-LAB	lab(26.86, 13.75, -39.27)
CIE-LCH	lch(26.86, 41.61, 289.29°)
OKLab	oklab(37.43% -0.0093 -0.1127)
OKLCH	oklch(37.43% 0.113 265.3)
XYZ	xyz(5.9458, 5.0437, 19.7251)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C7C #7C6323

analogous

#23687C #233C7C #36237C

triadic

#233C7C #7C233C #3C7C23

tetradic

#233C7C #7C2368 #7C6323 #237C36

square

#233C7C #7C2368 #7C6323 #237C36

split-complementary

#233C7C #7C3623 #687C23

monochromatic

#080E1D #16254C #233C7C #3053AC #4D71CD

Accessibility & contrast

On white

10.45

#233C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#233C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C7C

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C7C	#FFFFFF	#000000	##FFFFFF
##233C7C	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17447E

Deuteranopia (green-blind)

#003C7B

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233c7c;
/* rgb */ color: rgb(35, 60, 124);
/* oklch */ color: oklch(37.4% 0.113 265.3);

Tailwind

colors: {
  custom: {
    50: '#6a71a2',
    500: '#233c7c',
    950: '#000000',
  },
}

SCSS

$custom: #233c7c;
$custom-light: #6a71a2;
$custom-dark: #000000;

JSON

{
  "hex": "#233c7c",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 124
  },
  "hsl": {
    "h": 223.146,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37433,
    "c": 0.11309,
    "h": 265.3
  },
  "luminance": 0.05044
}

Semantic roles & 50–950 ramp

primary

#233C7C

secondary

#AF934C

accent

#B549DF

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233C7C

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

Preview Lab → · Contrast checker → · Palette generator →