#243D5F#243D5F

#243D5F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.067 H 256.4°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#243D5F
RGB	rgb(36, 61, 95)
HSL	hsl(215, 45%, 26%)
HSV	hsv(215, 62%, 37%)
CMYK	cmyk(62.1%, 35.8%, 0%, 62.7%)
CIE-LAB	lab(25.38, 2.01, -23.10)
CIE-LCH	lch(25.38, 23.19, 274.97°)
OKLab	oklab(35.71% -0.0157 -0.0653)
OKLCH	oklch(35.71% 0.067 256.4)
XYZ	xyz(4.4611, 4.5384, 11.4652)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D5F #5F4624

analogous

#245A5F #243D5F #28245F

triadic

#243D5F #5F243D #3D5F24

tetradic

#243D5F #5F245A #5F4624 #245F28

square

#243D5F #5F245A #5F4624 #245F28

split-complementary

#243D5F #5F2824 #5A5F24

monochromatic

#080E16 #132133 #243D5F #35598B #4676B8

Accessibility & contrast

On white

11.01

#243D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#243D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D5F

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D5F	#FFFFFF	#000000	##FFFFFF
##243D5F	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3F60

Deuteranopia (green-blind)

#273A5E

Tritanopia (blue-blind)

#004549

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243d5f;
/* rgb */ color: rgb(36, 61, 95);
/* oklch */ color: oklch(35.7% 0.067 256.4);

Tailwind

colors: {
  custom: {
    50: '#64728c',
    500: '#243d5f',
    950: '#000000',
  },
}

SCSS

$custom: #243d5f;
$custom-light: #64728c;
$custom-dark: #000000;

JSON

{
  "hex": "#243d5f",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 95
  },
  "hsl": {
    "h": 214.576,
    "s": 45.038,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35707,
    "c": 0.06713,
    "h": 256.4
  },
  "luminance": 0.04539
}

Semantic roles & 50–950 ramp

primary

#243D5F

secondary

#93754C

accent

#9E53D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #243D5F

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

Preview Lab → · Contrast checker → · Palette generator →