#243ABC#243ABC

#243ABC is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 42.9% C 0.203 H 268.1°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#243ABC
RGB	rgb(36, 58, 188)
HSL	hsl(231, 68%, 44%)
HSV	hsv(231, 81%, 74%)
CMYK	cmyk(80.9%, 69.1%, 0%, 26.3%)
CIE-LAB	lab(31.88, 39.60, -70.01)
CIE-LCH	lch(31.88, 80.44, 299.49°)
OKLab	oklab(42.87% -0.0068 -0.2028)
OKLCH	oklch(42.87% 0.203 268.1)
XYZ	xyz(11.3146, 7.0307, 48.3279)
Luminance	0.0703 (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

#243ABC #BCA624

analogous

#2486BC #243ABC #5A24BC

triadic

#243ABC #BC243A #3ABC24

tetradic

#243ABC #BC2486 #BCA624 #24BC5A

square

#243ABC #BC2486 #BCA624 #24BC5A

split-complementary

#243ABC #BC5A24 #86BC24

monochromatic

#101A55 #1A2A89 #243ABC #4258DB #7686E5

Accessibility & contrast

On white

8.73

#243ABC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#243ABC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243ABC

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243ABC	#FFFFFF	#000000	##FFFFFF
##243ABC	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052C0

Deuteranopia (green-blind)

#0044BA

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #243abc;
/* rgb */ color: rgb(36, 58, 188);
/* oklch */ color: oklch(42.9% 0.203 268.1);

Tailwind

colors: {
  custom: {
    50: '#7a70d1',
    500: '#243abc',
    950: '#000000',
  },
}

SCSS

$custom: #243abc;
$custom-light: #7a70d1;
$custom-dark: #000000;

JSON

{
  "hex": "#243abc",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 188
  },
  "hsl": {
    "h": 231.316,
    "s": 67.857,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42867,
    "c": 0.20295,
    "h": 268.1
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#243ABC

secondary

#CCBF70

accent

#D23DEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #243ABC

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

Preview Lab → · Contrast checker → · Palette generator →