#243A7A#243A7A

#243A7A is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.9% C 0.112 H 266.6°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#243A7A
RGB	rgb(36, 58, 122)
HSL	hsl(225, 54%, 31%)
HSV	hsv(225, 70%, 48%)
CMYK	cmyk(70.5%, 52.5%, 0%, 52.2%)
CIE-LAB	lab(26.17, 14.52, -39.11)
CIE-LCH	lch(26.17, 41.72, 290.37°)
OKLab	oklab(36.88% -0.0067 -0.1122)
OKLCH	oklch(36.88% 0.112 266.6)
XYZ	xyz(5.7522, 4.8058, 19.0330)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A7A #7A6424

analogous

#24657A #243A7A #39247A

triadic

#243A7A #7A243A #3A7A24

tetradic

#243A7A #7A2465 #7A6424 #247A39

square

#243A7A #7A2465 #7A6424 #247A39

split-complementary

#243A7A #7A3924 #657A24

monochromatic

#080D1B #16244B #243A7A #3250A9 #4E6ECB

Accessibility & contrast

On white

10.71

#243A7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#243A7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A7A

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A7A	#FFFFFF	#000000	##FFFFFF
##243A7A	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15427C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243a7a;
/* rgb */ color: rgb(36, 58, 122);
/* oklch */ color: oklch(36.9% 0.112 266.6);

Tailwind

colors: {
  custom: {
    50: '#6a6fa1',
    500: '#243a7a',
    950: '#000000',
  },
}

SCSS

$custom: #243a7a;
$custom-light: #6a6fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#243a7a",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 122
  },
  "hsl": {
    "h": 224.651,
    "s": 54.43,
    "l": 30.98
  },
  "oklch": {
    "l": 0.3688,
    "c": 0.11245,
    "h": 266.6
  },
  "luminance": 0.04806
}

Semantic roles & 50–950 ramp

primary

#243A7A

secondary

#AC944D

accent

#B84ADE

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #243A7A

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

Preview Lab → · Contrast checker → · Palette generator →