#243F65#243F65

#243F65 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.6% C 0.074 H 257.1°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#243F65
RGB	rgb(36, 63, 101)
HSL	hsl(215, 47%, 27%)
HSV	hsv(215, 64%, 40%)
CMYK	cmyk(64.4%, 37.6%, 0%, 60.4%)
CIE-LAB	lab(26.36, 2.91, -25.43)
CIE-LCH	lch(26.36, 25.60, 276.54°)
OKLab	oklab(36.58% -0.0164 -0.072)
OKLCH	oklch(36.58% 0.074 257.1)
XYZ	xyz(4.8532, 4.8692, 12.9935)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F65 #654A24

analogous

#246065 #243F65 #2A2465

triadic

#243F65 #65243F #3F6524

tetradic

#243F65 #652460 #654A24 #24652A

square

#243F65 #652460 #654A24 #24652A

split-complementary

#243F65 #652A24 #606524

monochromatic

#080E17 #142338 #243F65 #345B92 #4678BD

Accessibility & contrast

On white

10.64

#243F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#243F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F65

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F65	#FFFFFF	#000000	##FFFFFF
##243F65	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4267

Deuteranopia (green-blind)

#263C64

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243f65;
/* rgb */ color: rgb(36, 63, 101);
/* oklch */ color: oklch(36.6% 0.074 257.1);

Tailwind

colors: {
  custom: {
    50: '#657391',
    500: '#243f65',
    950: '#000000',
  },
}

SCSS

$custom: #243f65;
$custom-light: #657391;
$custom-dark: #000000;

JSON

{
  "hex": "#243f65",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 101
  },
  "hsl": {
    "h": 215.077,
    "s": 47.445,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36584,
    "c": 0.07388,
    "h": 257.1
  },
  "luminance": 0.0487
}

Semantic roles & 50–950 ramp

primary

#243F65

secondary

#98794C

accent

#9F51D7

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06080C

muted

#7A7B7D

Preview Lab

Preview with #243F65

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

Preview Lab → · Contrast checker → · Palette generator →