#243E64#243E64

#243E64 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.074 H 257.8°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#243E64
RGB	rgb(36, 62, 100)
HSL	hsl(216, 47%, 27%)
HSV	hsv(216, 64%, 39%)
CMYK	cmyk(64%, 38%, 0%, 60.8%)
CIE-LAB	lab(25.98, 3.21, -25.39)
CIE-LCH	lch(25.98, 25.59, 277.22°)
OKLab	oklab(36.27% -0.0155 -0.0719)
OKLCH	oklch(36.27% 0.074 257.8)
XYZ	xyz(4.7496, 4.7400, 12.7187)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E64 #644A24

analogous

#245E64 #243E64 #2A2464

triadic

#243E64 #64243E #3E6424

tetradic

#243E64 #64245E #644A24 #24642A

square

#243E64 #64245E #644A24 #24642A

split-complementary

#243E64 #642A24 #5E6424

monochromatic

#080E17 #142237 #243E64 #345A91 #4676BC

Accessibility & contrast

On white

10.78

#243E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E64

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E64	#FFFFFF	#000000	##FFFFFF
##243E64	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4166

Deuteranopia (green-blind)

#253B63

Tritanopia (blue-blind)

#00474C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243e64;
/* rgb */ color: rgb(36, 62, 100);
/* oklch */ color: oklch(36.3% 0.074 257.8);

Tailwind

colors: {
  custom: {
    50: '#657390',
    500: '#243e64',
    950: '#000000',
  },
}

SCSS

$custom: #243e64;
$custom-light: #657390;
$custom-dark: #000000;

JSON

{
  "hex": "#243e64",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 100
  },
  "hsl": {
    "h": 215.625,
    "s": 47.059,
    "l": 26.667
  },
  "oklch": {
    "l": 0.3627,
    "c": 0.07356,
    "h": 257.8
  },
  "luminance": 0.0474
}

Semantic roles & 50–950 ramp

primary

#243E64

secondary

#97794C

accent

#A051D7

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #243E64

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

Preview Lab → · Contrast checker → · Palette generator →