#243F74#243F74

#243F74 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.097 H 262.4°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#243F74
RGB	rgb(36, 63, 116)
HSL	hsl(220, 53%, 30%)
HSV	hsv(220, 69%, 45%)
CMYK	cmyk(69%, 45.7%, 0%, 54.5%)
CIE-LAB	lab(27.27, 8.70, -33.56)
CIE-LCH	lch(27.27, 34.67, 284.53°)
OKLab	oklab(37.59% -0.0128 -0.0958)
OKLCH	oklch(37.59% 0.097 262.4)
XYZ	xyz(5.6563, 5.1905, 17.2234)
Luminance	0.0519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F74 #745924

analogous

#246774 #243F74 #312474

triadic

#243F74 #74243F #3F7424

tetradic

#243F74 #742467 #745924 #247431

square

#243F74 #742467 #745924 #247431

split-complementary

#243F74 #743124 #677424

monochromatic

#070D17 #162645 #243F74 #3258A3 #4B75C7

Accessibility & contrast

On white

10.30

#243F74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#243F74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F74

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F74	#FFFFFF	#000000	##FFFFFF
##243F74	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264476

Deuteranopia (green-blind)

#193D73

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243f74;
/* rgb */ color: rgb(36, 63, 116);
/* oklch */ color: oklch(37.6% 0.097 262.4);

Tailwind

colors: {
  custom: {
    50: '#68739c',
    500: '#243f74',
    950: '#000000',
  },
}

SCSS

$custom: #243f74;
$custom-light: #68739c;
$custom-dark: #000000;

JSON

{
  "hex": "#243f74",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 116
  },
  "hsl": {
    "h": 219.75,
    "s": 52.632,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37587,
    "c": 0.09668,
    "h": 262.4
  },
  "luminance": 0.05191
}

Semantic roles & 50–950 ramp

primary

#243F74

secondary

#A7884D

accent

#AB4CDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #243F74

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

Preview Lab → · Contrast checker → · Palette generator →