#233C8F#233C8F

#233C8F is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.141 H 266.9°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#233C8F
RGB	rgb(35, 60, 143)
HSL	hsl(226, 61%, 35%)
HSV	hsv(226, 76%, 56%)
CMYK	cmyk(75.5%, 58%, 0%, 43.9%)
CIE-LAB	lab(28.30, 21.23, -48.76)
CIE-LCH	lch(28.30, 53.18, 293.53°)
OKLab	oklab(38.98% -0.0076 -0.1406)
OKLCH	oklch(38.98% 0.141 266.9)
XYZ	xyz(7.2652, 5.5714, 26.6738)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C8F #8F7623

analogous

#23728F #233C8F #40238F

triadic

#233C8F #8F233C #3C8F23

tetradic

#233C8F #8F2372 #8F7623 #238F40

square

#233C8F #8F2372 #8F7623 #238F40

split-complementary

#233C8F #8F4023 #728F23

monochromatic

#0B132D #17275E #233C8F #2F51C0 #5774D6

Accessibility & contrast

On white

9.93

#233C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#233C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C8F

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C8F	#FFFFFF	#000000	##FFFFFF
##233C8F	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004892

Deuteranopia (green-blind)

#003E8D

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233c8f;
/* rgb */ color: rgb(35, 60, 143);
/* oklch */ color: oklch(39.0% 0.141 266.9);

Tailwind

colors: {
  custom: {
    50: '#6e71b0',
    500: '#233c8f',
    950: '#000000',
  },
}

SCSS

$custom: #233c8f;
$custom-light: #6e71b0;
$custom-dark: #000000;

JSON

{
  "hex": "#233c8f",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 143
  },
  "hsl": {
    "h": 226.111,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38984,
    "c": 0.14081,
    "h": 266.9
  },
  "luminance": 0.05572
}

Semantic roles & 50–950 ramp

primary

#233C8F

secondary

#BAA254

accent

#BF44E4

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080711

muted

#7B7A80

Preview Lab

Preview with #233C8F

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

Preview Lab → · Contrast checker → · Palette generator →