#243457#243457

#243457 is a dark, moderate blue. Relative luminance 0.035; OKLCH L 32.9% C 0.066 H 264.5°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#243457
RGB	rgb(36, 52, 87)
HSL	hsl(221, 41%, 24%)
HSV	hsv(221, 59%, 34%)
CMYK	cmyk(58.6%, 40.2%, 0%, 65.9%)
CIE-LAB	lab(22.01, 5.23, -23.17)
CIE-LCH	lch(22.01, 23.75, 282.72°)
OKLab	oklab(32.94% -0.0063 -0.0655)
OKLCH	oklch(32.94% 0.066 264.5)
XYZ	xyz(3.6753, 3.5189, 9.5005)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243457 #574724

analogous

#244E57 #243457 #2E2457

triadic

#243457 #572434 #345724

tetradic

#243457 #57244E #574724 #24572E

square

#243457 #57244E #574724 #24572E

split-complementary

#243457 #572E24 #4E5724

monochromatic

#090D16 #121A2C #243457 #364E82 #4868AE

Accessibility & contrast

On white

12.33

#243457 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#243457 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243457

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243457	#FFFFFF	#000000	##FFFFFF
##243457	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263758

Deuteranopia (green-blind)

#203356

Tritanopia (blue-blind)

#083C41

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #243457;
/* rgb */ color: rgb(36, 52, 87);
/* oklch */ color: oklch(32.9% 0.066 264.5);

Tailwind

colors: {
  custom: {
    50: '#636b86',
    500: '#243457',
    950: '#000000',
  },
}

SCSS

$custom: #243457;
$custom-light: #636b86;
$custom-dark: #000000;

JSON

{
  "hex": "#243457",
  "rgb": {
    "r": 36,
    "g": 52,
    "b": 87
  },
  "hsl": {
    "h": 221.176,
    "s": 41.463,
    "l": 24.118
  },
  "oklch": {
    "l": 0.32941,
    "c": 0.06584,
    "h": 264.5
  },
  "luminance": 0.03519
}

Semantic roles & 50–950 ramp

primary

#243457

secondary

#8B774C

accent

#AB57D1

background

#F6F6F8

surface

#EBEBEF

border

#C6C6CA

text

#05060B

muted

#7A7A7C

Preview Lab

Preview with #243457

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

Preview Lab → · Contrast checker → · Palette generator →