#233BBC#233BBC

#233BBC is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.0% C 0.202 H 267.7°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#233BBC
RGB	rgb(35, 59, 188)
HSL	hsl(231, 69%, 44%)
HSV	hsv(231, 81%, 74%)
CMYK	cmyk(81.4%, 68.6%, 0%, 26.3%)
CIE-LAB	lab(32.07, 38.90, -69.70)
CIE-LCH	lch(32.07, 79.82, 299.16°)
OKLab	oklab(42.99% -0.008 -0.2019)
OKLCH	oklch(42.99% 0.202 267.7)
XYZ	xyz(11.3310, 7.1148, 48.3433)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BBC #BCA423

analogous

#2387BC #233BBC #5723BC

triadic

#233BBC #BC233B #3BBC23

tetradic

#233BBC #BC2387 #BCA423 #23BC57

square

#233BBC #BC2387 #BCA423 #23BC57

split-complementary

#233BBC #BC5723 #87BC23

monochromatic

#101B55 #192B88 #233BBC #4159DC #7486E5

Accessibility & contrast

On white

8.67

#233BBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#233BBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BBC

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BBC	#FFFFFF	#000000	##FFFFFF
##233BBC	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0044BA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #233bbc;
/* rgb */ color: rgb(35, 59, 188);
/* oklch */ color: oklch(43.0% 0.202 267.7);

Tailwind

colors: {
  custom: {
    50: '#7a71d1',
    500: '#233bbc',
    950: '#000000',
  },
}

SCSS

$custom: #233bbc;
$custom-light: #7a71d1;
$custom-dark: #000000;

JSON

{
  "hex": "#233bbc",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 188
  },
  "hsl": {
    "h": 230.588,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42994,
    "c": 0.20211,
    "h": 267.7
  },
  "luminance": 0.07116
}

Semantic roles & 50–950 ramp

primary

#233BBC

secondary

#CCBE6F

accent

#D03CEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #233BBC

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

Preview Lab → · Contrast checker → · Palette generator →