#233F74#233F74

#233F74 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.5% C 0.097 H 261.9°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#233F74
RGB	rgb(35, 63, 116)
HSL	hsl(219, 54%, 30%)
HSV	hsv(219, 70%, 45%)
CMYK	cmyk(69.8%, 45.7%, 0%, 54.5%)
CIE-LAB	lab(27.22, 8.51, -33.64)
CIE-LCH	lch(27.22, 34.70, 284.20°)
OKLab	oklab(37.54% -0.0137 -0.0961)
OKLCH	oklch(37.54% 0.097 261.9)
XYZ	xyz(5.6219, 5.1727, 17.2218)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F74 #745823

analogous

#236874 #233F74 #302374

triadic

#233F74 #74233F #3F7423

tetradic

#233F74 #742368 #745823 #237430

square

#233F74 #742368 #745823 #237430

split-complementary

#233F74 #743023 #687423

monochromatic

#070D18 #152545 #233F74 #3159A3 #4975C8

Accessibility & contrast

On white

10.32

#233F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#233F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F74

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F74	#FFFFFF	#000000	##FFFFFF
##233F74	1.00	10.32	2.03	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264476

Deuteranopia (green-blind)

#183D73

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233f74;
/* rgb */ color: rgb(35, 63, 116);
/* oklch */ color: oklch(37.5% 0.097 261.9);

Tailwind

colors: {
  custom: {
    50: '#68739c',
    500: '#233f74',
    950: '#000000',
  },
}

SCSS

$custom: #233f74;
$custom-light: #68739c;
$custom-dark: #000000;

JSON

{
  "hex": "#233f74",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 116
  },
  "hsl": {
    "h": 219.259,
    "s": 53.642,
    "l": 29.608
  },
  "oklch": {
    "l": 0.37535,
    "c": 0.09706,
    "h": 261.9
  },
  "luminance": 0.05173
}

Semantic roles & 50–950 ramp

primary

#233F74

secondary

#A7874C

accent

#AA4BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #233F74

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

Preview Lab → · Contrast checker → · Palette generator →