#243B6E#243B6E

#243B6E is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.093 H 264.1°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#243B6E
RGB	rgb(36, 59, 110)
HSL	hsl(221, 51%, 29%)
HSV	hsv(221, 67%, 43%)
CMYK	cmyk(67.3%, 46.4%, 0%, 56.9%)
CIE-LAB	lab(25.65, 9.13, -32.34)
CIE-LCH	lch(25.65, 33.60, 285.77°)
OKLab	oklab(36.21% -0.0096 -0.0923)
OKLCH	oklch(36.21% 0.093 264.1)
XYZ	xyz(5.1050, 4.6283, 15.3732)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B6E #6E5724

analogous

#24606E #243B6E #32246E

triadic

#243B6E #6E243B #3B6E24

tetradic

#243B6E #6E2460 #6E5724 #246E32

square

#243B6E #6E2460 #6E5724 #246E32

split-complementary

#243B6E #6E3224 #606E24

monochromatic

#080C17 #152240 #243B6E #33549C #496FC3

Accessibility & contrast

On white

10.90

#243B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#243B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B6E

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B6E	#FFFFFF	#000000	##FFFFFF
##243B6E	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234070

Deuteranopia (green-blind)

#173A6D

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243b6e;
/* rgb */ color: rgb(36, 59, 110);
/* oklch */ color: oklch(36.2% 0.093 264.1);

Tailwind

colors: {
  custom: {
    50: '#677098',
    500: '#243b6e',
    950: '#000000',
  },
}

SCSS

$custom: #243b6e;
$custom-light: #677098;
$custom-dark: #000000;

JSON

{
  "hex": "#243b6e",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 110
  },
  "hsl": {
    "h": 221.351,
    "s": 50.685,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36212,
    "c": 0.0928,
    "h": 264.1
  },
  "luminance": 0.04629
}

Semantic roles & 50–950 ramp

primary

#243B6E

secondary

#A1874D

accent

#AE4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243B6E

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

Preview Lab → · Contrast checker → · Palette generator →