#243F70#243F70

#243F70 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.091 H 261.3°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#243F70
RGB	rgb(36, 63, 112)
HSL	hsl(219, 51%, 29%)
HSV	hsv(219, 68%, 44%)
CMYK	cmyk(67.9%, 43.7%, 0%, 56.1%)
CIE-LAB	lab(27.02, 7.14, -31.43)
CIE-LCH	lch(27.02, 32.23, 282.80°)
OKLab	oklab(37.31% -0.0136 -0.0896)
OKLCH	oklch(37.31% 0.091 261.3)
XYZ	xyz(5.4287, 5.0994, 16.0243)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F70 #705524

analogous

#246570 #243F70 #2F2470

triadic

#243F70 #70243F #3F7024

tetradic

#243F70 #702465 #705524 #24702F

square

#243F70 #702465 #705524 #24702F

split-complementary

#243F70 #702F24 #657024

monochromatic

#070D17 #152542 #243F70 #33599E #4A75C5

Accessibility & contrast

On white

10.40

#243F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#243F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F70

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F70	#FFFFFF	#000000	##FFFFFF
##243F70	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294472

Deuteranopia (green-blind)

#1D3D6F

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #243f70;
/* rgb */ color: rgb(36, 63, 112);
/* oklch */ color: oklch(37.3% 0.091 261.3);

Tailwind

colors: {
  custom: {
    50: '#677399',
    500: '#243f70',
    950: '#000000',
  },
}

SCSS

$custom: #243f70;
$custom-light: #677399;
$custom-dark: #000000;

JSON

{
  "hex": "#243f70",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 112
  },
  "hsl": {
    "h": 218.684,
    "s": 51.351,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37308,
    "c": 0.0906,
    "h": 261.3
  },
  "luminance": 0.051
}

Semantic roles & 50–950 ramp

primary

#243F70

secondary

#A3844D

accent

#A84DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #243F70

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

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