#243C76#243C76

#243C76 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.104 H 264.9°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#243C76
RGB	rgb(36, 60, 118)
HSL	hsl(222, 53%, 30%)
HSV	hsv(222, 69%, 46%)
CMYK	cmyk(69.5%, 49.2%, 0%, 53.7%)
CIE-LAB	lab(26.49, 11.56, -36.08)
CIE-LCH	lch(26.49, 37.88, 287.77°)
OKLab	oklab(37.03% -0.0092 -0.1033)
OKLCH	oklch(37.03% 0.104 264.9)
XYZ	xyz(5.6123, 4.9143, 17.7888)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C76 #765E24

analogous

#246576 #243C76 #352476

triadic

#243C76 #76243C #3C7624

tetradic

#243C76 #762465 #765E24 #247635

square

#243C76 #762465 #765E24 #247635

split-complementary

#243C76 #763524 #657624

monochromatic

#070C18 #162447 #243C76 #3254A5 #4C70C8

Accessibility & contrast

On white

10.59

#243C76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#243C76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C76

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C76	#FFFFFF	#000000	##FFFFFF
##243C76	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4378

Deuteranopia (green-blind)

#0D3B75

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243c76;
/* rgb */ color: rgb(36, 60, 118);
/* oklch */ color: oklch(37.0% 0.104 264.9);

Tailwind

colors: {
  custom: {
    50: '#69719e',
    500: '#243c76',
    950: '#000000',
  },
}

SCSS

$custom: #243c76;
$custom-light: #69719e;
$custom-dark: #000000;

JSON

{
  "hex": "#243c76",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 118
  },
  "hsl": {
    "h": 222.439,
    "s": 53.247,
    "l": 30.196
  },
  "oklch": {
    "l": 0.37029,
    "c": 0.1037,
    "h": 264.9
  },
  "luminance": 0.04915
}

Semantic roles & 50–950 ramp

primary

#243C76

secondary

#A98E4D

accent

#B24BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243C76

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

Preview Lab → · Contrast checker → · Palette generator →