#243B76#243B76

#243B76 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.105 H 265.5°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#243B76
RGB	rgb(36, 59, 118)
HSL	hsl(223, 53%, 30%)
HSV	hsv(223, 69%, 46%)
CMYK	cmyk(69.5%, 50%, 0%, 53.7%)
CIE-LAB	lab(26.19, 12.26, -36.56)
CIE-LCH	lch(26.19, 38.56, 288.53°)
OKLab	oklab(36.8% -0.0082 -0.1047)
OKLCH	oklch(36.8% 0.105 265.5)
XYZ	xyz(5.5604, 4.8105, 17.7715)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B76 #765F24

analogous

#246476 #243B76 #362476

triadic

#243B76 #76243B #3B7624

tetradic

#243B76 #762464 #765F24 #247636

square

#243B76 #762464 #765F24 #247636

split-complementary

#243B76 #763624 #647624

monochromatic

#070C18 #162447 #243B76 #3252A5 #4C6FC8

Accessibility & contrast

On white

10.70

#243B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#243B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B76

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B76	#FFFFFF	#000000	##FFFFFF
##243B76	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4278

Deuteranopia (green-blind)

#093A75

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243b76;
/* rgb */ color: rgb(36, 59, 118);
/* oklch */ color: oklch(36.8% 0.105 265.5);

Tailwind

colors: {
  custom: {
    50: '#69709e',
    500: '#243b76',
    950: '#000000',
  },
}

SCSS

$custom: #243b76;
$custom-light: #69709e;
$custom-dark: #000000;

JSON

{
  "hex": "#243b76",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 118
  },
  "hsl": {
    "h": 223.171,
    "s": 53.247,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36799,
    "c": 0.10505,
    "h": 265.5
  },
  "luminance": 0.04811
}

Semantic roles & 50–950 ramp

primary

#243B76

secondary

#A98F4D

accent

#B44BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243B76

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

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