#233C7F#233C7F

#233C7F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.7% C 0.118 H 265.6°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#233C7F
RGB	rgb(35, 60, 127)
HSL	hsl(224, 57%, 32%)
HSV	hsv(224, 72%, 50%)
CMYK	cmyk(72.4%, 52.8%, 0%, 50.2%)
CIE-LAB	lab(27.08, 14.93, -40.80)
CIE-LCH	lch(27.08, 43.45, 290.10°)
OKLab	oklab(37.67% -0.009 -0.1172)
OKLCH	oklch(37.67% 0.118 265.6)
XYZ	xyz(6.1384, 5.1207, 20.7395)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C7F #7F6623

analogous

#236A7F #233C7F #38237F

triadic

#233C7F #7F233C #3C7F23

tetradic

#233C7F #7F236A #7F6623 #237F38

square

#233C7F #7F236A #7F6623 #237F38

split-complementary

#233C7F #7F3823 #6A7F23

monochromatic

#090F1F #16254F #233C7F #3053AF #4E71CE

Accessibility & contrast

On white

10.37

#233C7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#233C7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C7F

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C7F	#FFFFFF	#000000	##FFFFFF
##233C7F	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134481

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233c7f;
/* rgb */ color: rgb(35, 60, 127);
/* oklch */ color: oklch(37.7% 0.118 265.6);

Tailwind

colors: {
  custom: {
    50: '#6a71a5',
    500: '#233c7f',
    950: '#000000',
  },
}

SCSS

$custom: #233c7f;
$custom-light: #6a71a5;
$custom-dark: #000000;

JSON

{
  "hex": "#233c7f",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 127
  },
  "hsl": {
    "h": 223.696,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37667,
    "c": 0.11755,
    "h": 265.6
  },
  "luminance": 0.05121
}

Semantic roles & 50–950 ramp

primary

#233C7F

secondary

#B1964C

accent

#B748E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233C7F

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

Preview Lab → · Contrast checker → · Palette generator →