#243D70#243D70

#243D70 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.093 H 263.0°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#243D70
RGB	rgb(36, 61, 112)
HSL	hsl(220, 51%, 29%)
HSV	hsv(220, 68%, 44%)
CMYK	cmyk(67.9%, 45.5%, 0%, 56.1%)
CIE-LAB	lab(26.40, 8.52, -32.42)
CIE-LCH	lch(26.40, 33.52, 284.73°)
OKLab	oklab(36.83% -0.0114 -0.0925)
OKLCH	oklch(36.83% 0.093 263)
XYZ	xyz(5.3199, 4.8819, 15.9880)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D70 #705724

analogous

#246370 #243D70 #312470

triadic

#243D70 #70243D #3D7024

tetradic

#243D70 #702463 #705724 #247031

square

#243D70 #702463 #705724 #247031

split-complementary

#243D70 #703124 #637024

monochromatic

#070D17 #152442 #243D70 #33569E #4A72C5

Accessibility & contrast

On white

10.63

#243D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#243D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D70

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D70	#FFFFFF	#000000	##FFFFFF
##243D70	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254272

Deuteranopia (green-blind)

#193B6F

Tritanopia (blue-blind)

#004951

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243d70;
/* rgb */ color: rgb(36, 61, 112);
/* oklch */ color: oklch(36.8% 0.093 263.0);

Tailwind

colors: {
  custom: {
    50: '#677299',
    500: '#243d70',
    950: '#000000',
  },
}

SCSS

$custom: #243d70;
$custom-light: #677299;
$custom-dark: #000000;

JSON

{
  "hex": "#243d70",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 112
  },
  "hsl": {
    "h": 220.263,
    "s": 51.351,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36829,
    "c": 0.09321,
    "h": 263
  },
  "luminance": 0.04882
}

Semantic roles & 50–950 ramp

primary

#243D70

secondary

#A3874D

accent

#AC4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #243D70

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

Preview Lab → · Contrast checker → · Palette generator →