#243A84#243A84

#243A84 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 37.7% C 0.127 H 267.4°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#243A84
RGB	rgb(36, 58, 132)
HSL	hsl(226, 57%, 33%)
HSV	hsv(226, 73%, 52%)
CMYK	cmyk(72.7%, 56.1%, 0%, 48.2%)
CIE-LAB	lab(26.92, 18.44, -44.18)
CIE-LCH	lch(26.92, 47.87, 292.66°)
OKLab	oklab(37.69% -0.0057 -0.1272)
OKLCH	oklch(37.69% 0.127 267.4)
XYZ	xyz(6.4040, 5.0665, 22.4657)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A84 #846E24

analogous

#246A84 #243A84 #3E2484

triadic

#243A84 #84243A #3A8424

tetradic

#243A84 #84246A #846E24 #24843E

square

#243A84 #84246A #846E24 #24843E

split-complementary

#243A84 #843E24 #6A8424

monochromatic

#0A1024 #172554 #243A84 #314FB4 #526FD0

Accessibility & contrast

On white

10.43

#243A84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#243A84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A84

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A84	#FFFFFF	#000000	##FFFFFF
##243A84	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004487

Deuteranopia (green-blind)

#003B83

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243a84;
/* rgb */ color: rgb(36, 58, 132);
/* oklch */ color: oklch(37.7% 0.127 267.4);

Tailwind

colors: {
  custom: {
    50: '#6c6fa8',
    500: '#243a84',
    950: '#000000',
  },
}

SCSS

$custom: #243a84;
$custom-light: #6c6fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#243a84",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 132
  },
  "hsl": {
    "h": 226.25,
    "s": 57.143,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37685,
    "c": 0.12728,
    "h": 267.4
  },
  "luminance": 0.05067
}

Semantic roles & 50–950 ramp

primary

#243A84

secondary

#B49D50

accent

#BD47E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243A84

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

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