#243F75#243F75

#243F75 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.098 H 262.6°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#243F75
RGB	rgb(36, 63, 117)
HSL	hsl(220, 53%, 30%)
HSV	hsv(220, 69%, 46%)
CMYK	cmyk(69.2%, 46.2%, 0%, 54.1%)
CIE-LAB	lab(27.34, 9.09, -34.09)
CIE-LCH	lch(27.34, 35.28, 284.93°)
OKLab	oklab(37.66% -0.0126 -0.0974)
OKLCH	oklch(37.66% 0.098 262.6)
XYZ	xyz(5.7148, 5.2139, 17.5314)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F75 #755A24

analogous

#246775 #243F75 #322475

triadic

#243F75 #75243F #3F7524

tetradic

#243F75 #752467 #755A24 #247532

square

#243F75 #752467 #755A24 #247532

split-complementary

#243F75 #753224 #677524

monochromatic

#070D17 #162646 #243F75 #3258A4 #4C75C8

Accessibility & contrast

On white

10.28

#243F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#243F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F75

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F75	#FFFFFF	#000000	##FFFFFF
##243F75	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254577

Deuteranopia (green-blind)

#173D74

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #243f75;
/* rgb */ color: rgb(36, 63, 117);
/* oklch */ color: oklch(37.7% 0.098 262.6);

Tailwind

colors: {
  custom: {
    50: '#68739d',
    500: '#243f75',
    950: '#000000',
  },
}

SCSS

$custom: #243f75;
$custom-light: #68739d;
$custom-dark: #000000;

JSON

{
  "hex": "#243f75",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 117
  },
  "hsl": {
    "h": 220,
    "s": 52.941,
    "l": 30
  },
  "oklch": {
    "l": 0.37658,
    "c": 0.0982,
    "h": 262.6
  },
  "luminance": 0.05214
}

Semantic roles & 50–950 ramp

primary

#243F75

secondary

#A88A4D

accent

#AC4BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #243F75

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

Preview Lab → · Contrast checker → · Palette generator →