#231CBE#231CBE

#231CBE is a dark, highly saturated blue. Relative luminance 0.049; OKLCH L 39.1% C 0.232 H 270.1°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#231CBE
RGB	rgb(35, 28, 190)
HSL	hsl(243, 74%, 43%)
HSV	hsv(243, 85%, 75%)
CMYK	cmyk(81.6%, 85.3%, 0%, 25.5%)
CIE-LAB	lab(26.46, 56.13, -80.17)
CIE-LCH	lch(26.46, 97.86, 305.00°)
OKLab	oklab(39.09% 0.0003 -0.232)
OKLCH	oklch(39.09% 0.232 270.1)
XYZ	xyz(10.3995, 4.9043, 49.1037)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231CBE #B7BE1C

analogous

#1C66BE #231CBE #741CBE

triadic

#231CBE #BE231C #1CBE23

tetradic

#231CBE #BE1C66 #B7BE1C #1CBE74

square

#231CBE #BE1C66 #B7BE1C #1CBE74

split-complementary

#231CBE #BE741C #66BE1C

monochromatic

#0F0C53 #191489 #231CBE #3D36E1 #716BE9

Accessibility & contrast

On white

10.60

#231CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#231CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231CBE

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231CBE	#FFFFFF	#000000	##FFFFFF
##231CBE	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047C2

Deuteranopia (green-blind)

#0036BB

Tritanopia (blue-blind)

#005371

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #231cbe;
/* rgb */ color: rgb(35, 28, 190);
/* oklch */ color: oklch(39.1% 0.232 270.1);

Tailwind

colors: {
  custom: {
    50: '#7d5fd3',
    500: '#231cbe',
    950: '#000000',
  },
}

SCSS

$custom: #231cbe;
$custom-light: #7d5fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#231cbe",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 190
  },
  "hsl": {
    "h": 242.593,
    "s": 74.312,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39091,
    "c": 0.23196,
    "h": 270.1
  },
  "luminance": 0.04906
}

Semantic roles & 50–950 ramp

primary

#231CBE

secondary

#CACF67

accent

#F137E9

background

#F8F5FD

surface

#F0EAFA

border

#CBC6D3

text

#0C0514

muted

#7D7983

Preview Lab

Preview with #231CBE

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

Preview Lab → · Contrast checker → · Palette generator →