#243F7D#243F7D

#243F7D is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.2% C 0.110 H 264.2°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#243F7D
RGB	rgb(36, 63, 125)
HSL	hsl(222, 55%, 32%)
HSV	hsv(222, 71%, 49%)
CMYK	cmyk(71.2%, 49.6%, 0%, 51%)
CIE-LAB	lab(27.87, 12.23, -38.27)
CIE-LCH	lch(27.87, 40.17, 287.72°)
OKLab	oklab(38.24% -0.0112 -0.1097)
OKLCH	oklch(38.24% 0.11 264.2)
XYZ	xyz(6.2054, 5.4101, 20.1153)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F7D #7D6224

analogous

#246C7D #243F7D #36247D

triadic

#243F7D #7D243F #3F7D24

tetradic

#243F7D #7D246C #7D6224 #247D36

square

#243F7D #7D246C #7D6224 #247D36

split-complementary

#243F7D #7D3624 #6C7D24

monochromatic

#090F1E #16274D #243F7D #3257AD #4F75CC

Accessibility & contrast

On white

10.09

#243F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#243F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F7D

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F7D	#FFFFFF	#000000	##FFFFFF
##243F7D	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E467F

Deuteranopia (green-blind)

#083E7C

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #243f7d;
/* rgb */ color: rgb(36, 63, 125);
/* oklch */ color: oklch(38.2% 0.110 264.2);

Tailwind

colors: {
  custom: {
    50: '#6a73a3',
    500: '#243f7d',
    950: '#000000',
  },
}

SCSS

$custom: #243f7d;
$custom-light: #6a73a3;
$custom-dark: #000000;

JSON

{
  "hex": "#243f7d",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 221.798,
    "s": 55.28,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38243,
    "c": 0.11024,
    "h": 264.2
  },
  "luminance": 0.05411
}

Semantic roles & 50–950 ramp

primary

#243F7D

secondary

#AF924D

accent

#B149DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #243F7D

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

Preview Lab → · Contrast checker → · Palette generator →