#243F63#243F63

#243F63 is a dark, moderate cyan. Relative luminance 0.048; OKLCH L 36.5% C 0.071 H 256.1°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#243F63
RGB	rgb(36, 63, 99)
HSL	hsl(214, 47%, 26%)
HSV	hsv(214, 64%, 39%)
CMYK	cmyk(63.6%, 36.4%, 0%, 61.2%)
CIE-LAB	lab(26.25, 2.16, -24.32)
CIE-LCH	lch(26.25, 24.42, 275.07°)
OKLab	oklab(36.46% -0.017 -0.0688)
OKLCH	oklch(36.46% 0.071 256.1)
XYZ	xyz(4.7564, 4.8305, 12.4837)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F63 #634824

analogous

#245F63 #243F63 #292463

triadic

#243F63 #63243F #3F6324

tetradic

#243F63 #63245F #634824 #246329

square

#243F63 #63245F #634824 #246329

split-complementary

#243F63 #632924 #5F6324

monochromatic

#080E16 #142236 #243F63 #345C90 #4678BC

Accessibility & contrast

On white

10.68

#243F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#243F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F63

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F63	#FFFFFF	#000000	##FFFFFF
##243F63	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304165

Deuteranopia (green-blind)

#283B62

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243f63;
/* rgb */ color: rgb(36, 63, 99);
/* oklch */ color: oklch(36.5% 0.071 256.1);

Tailwind

colors: {
  custom: {
    50: '#65738f',
    500: '#243f63',
    950: '#000000',
  },
}

SCSS

$custom: #243f63;
$custom-light: #65738f;
$custom-dark: #000000;

JSON

{
  "hex": "#243f63",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 99
  },
  "hsl": {
    "h": 214.286,
    "s": 46.667,
    "l": 26.471
  },
  "oklch": {
    "l": 0.36459,
    "c": 0.07087,
    "h": 256.1
  },
  "luminance": 0.04831
}

Semantic roles & 50–950 ramp

primary

#243F63

secondary

#96774C

accent

#9D51D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #243F63

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

Preview Lab → · Contrast checker → · Palette generator →