#233C8D#233C8D

#233C8D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.138 H 266.8°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#233C8D
RGB	rgb(35, 60, 141)
HSL	hsl(226, 60%, 35%)
HSV	hsv(226, 75%, 55%)
CMYK	cmyk(75.2%, 57.4%, 0%, 44.7%)
CIE-LAB	lab(28.14, 20.45, -47.78)
CIE-LCH	lch(28.14, 51.97, 293.17°)
OKLab	oklab(38.81% -0.0078 -0.1377)
OKLCH	oklch(38.81% 0.138 266.8)
XYZ	xyz(7.1150, 5.5114, 25.8830)
Luminance	0.0551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C8D #8D7423

analogous

#23718D #233C8D #3F238D

triadic

#233C8D #8D233C #3C8D23

tetradic

#233C8D #8D2371 #8D7423 #238D3F

square

#233C8D #8D2371 #8D7423 #238D3F

split-complementary

#233C8D #8D3F23 #718D23

monochromatic

#0B122B #17275C #233C8D #2F51BE #5574D5

Accessibility & contrast

On white

9.99

#233C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#233C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C8D

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C8D	#FFFFFF	#000000	##FFFFFF
##233C8D	1.00	9.99	2.10	9.99
#FFFFFF	9.99	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	9.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004790

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233c8d;
/* rgb */ color: rgb(35, 60, 141);
/* oklch */ color: oklch(38.8% 0.138 266.8);

Tailwind

colors: {
  custom: {
    50: '#6e71af',
    500: '#233c8d',
    950: '#000000',
  },
}

SCSS

$custom: #233c8d;
$custom-light: #6e71af;
$custom-dark: #000000;

JSON

{
  "hex": "#233c8d",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 141
  },
  "hsl": {
    "h": 225.849,
    "s": 60.227,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38813,
    "c": 0.13796,
    "h": 266.8
  },
  "luminance": 0.05512
}

Semantic roles & 50–950 ramp

primary

#233C8D

secondary

#B9A153

accent

#BE44E3

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233C8D

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

Preview Lab → · Contrast checker → · Palette generator →