#243B65#243B65

#243B65 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.079 H 261.5°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#243B65
RGB	rgb(36, 59, 101)
HSL	hsl(219, 47%, 27%)
HSV	hsv(219, 64%, 40%)
CMYK	cmyk(64.4%, 41.6%, 0%, 60.4%)
CIE-LAB	lab(25.08, 5.65, -27.45)
CIE-LCH	lch(25.08, 28.03, 281.64°)
OKLab	oklab(35.59% -0.0116 -0.078)
OKLCH	oklch(35.59% 0.079 261.5)
XYZ	xyz(4.6397, 4.4422, 12.9223)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B65 #654E24

analogous

#245C65 #243B65 #2E2465

triadic

#243B65 #65243B #3B6524

tetradic

#243B65 #65245C #654E24 #24652E

square

#243B65 #65245C #654E24 #24652E

split-complementary

#243B65 #652E24 #5C6524

monochromatic

#080D17 #142138 #243B65 #345592 #4670BD

Accessibility & contrast

On white

11.12

#243B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#243B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B65

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B65	#FFFFFF	#000000	##FFFFFF
##243B65	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293F67

Deuteranopia (green-blind)

#203964

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243b65;
/* rgb */ color: rgb(36, 59, 101);
/* oklch */ color: oklch(35.6% 0.079 261.5);

Tailwind

colors: {
  custom: {
    50: '#657091',
    500: '#243b65',
    950: '#000000',
  },
}

SCSS

$custom: #243b65;
$custom-light: #657091;
$custom-dark: #000000;

JSON

{
  "hex": "#243b65",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 101
  },
  "hsl": {
    "h": 218.769,
    "s": 47.445,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35592,
    "c": 0.07884,
    "h": 261.5
  },
  "luminance": 0.04443
}

Semantic roles & 50–950 ramp

primary

#243B65

secondary

#987E4C

accent

#A851D7

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070D

muted

#7A7A7D

Preview Lab

Preview with #243B65

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

Preview Lab → · Contrast checker → · Palette generator →