#243D6E#243D6E

#243D6E is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.090 H 262.5°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#243D6E
RGB	rgb(36, 61, 110)
HSL	hsl(220, 51%, 29%)
HSV	hsv(220, 67%, 43%)
CMYK	cmyk(67.3%, 44.5%, 0%, 56.9%)
CIE-LAB	lab(26.27, 7.74, -31.35)
CIE-LCH	lch(26.27, 32.29, 283.87°)
OKLab	oklab(36.69% -0.0118 -0.0894)
OKLCH	oklch(36.69% 0.09 262.5)
XYZ	xyz(5.2098, 4.8379, 15.4081)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D6E #6E5524

analogous

#24626E #243D6E #30246E

triadic

#243D6E #6E243D #3D6E24

tetradic

#243D6E #6E2462 #6E5524 #246E30

square

#243D6E #6E2462 #6E5524 #246E30

split-complementary

#243D6E #6E3024 #626E24

monochromatic

#080D17 #152340 #243D6E #33579C #4972C3

Accessibility & contrast

On white

10.67

#243D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#243D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D6E

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D6E	#FFFFFF	#000000	##FFFFFF
##243D6E	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274270

Deuteranopia (green-blind)

#1B3B6D

Tritanopia (blue-blind)

#004850

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243d6e;
/* rgb */ color: rgb(36, 61, 110);
/* oklch */ color: oklch(36.7% 0.090 262.5);

Tailwind

colors: {
  custom: {
    50: '#677298',
    500: '#243d6e',
    950: '#000000',
  },
}

SCSS

$custom: #243d6e;
$custom-light: #677298;
$custom-dark: #000000;

JSON

{
  "hex": "#243d6e",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 110
  },
  "hsl": {
    "h": 219.73,
    "s": 50.685,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36689,
    "c": 0.09015,
    "h": 262.5
  },
  "luminance": 0.04838
}

Semantic roles & 50–950 ramp

primary

#243D6E

secondary

#A1854D

accent

#AB4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243D6E

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

Preview Lab → · Contrast checker → · Palette generator →