#243A6D#243A6D

#243A6D is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.093 H 264.6°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#243A6D
RGB	rgb(36, 58, 109)
HSL	hsl(222, 50%, 28%)
HSV	hsv(222, 67%, 43%)
CMYK	cmyk(67%, 46.8%, 0%, 57.3%)
CIE-LAB	lab(25.27, 9.44, -32.29)
CIE-LCH	lch(25.27, 33.64, 286.29°)
OKLab	oklab(35.9% -0.0087 -0.0922)
OKLCH	oklch(35.9% 0.093 264.6)
XYZ	xyz(5.0000, 4.5049, 15.0711)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A6D #6D5724

analogous

#245E6D #243A6D #32246D

triadic

#243A6D #6D243A #3A6D24

tetradic

#243A6D #6D245E #6D5724 #246D32

square

#243A6D #6D245E #6D5724 #246D32

split-complementary

#243A6D #6D3224 #5E6D24

monochromatic

#080C17 #15223F #243A6D #33529B #496DC3

Accessibility & contrast

On white

11.05

#243A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#243A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A6D

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A6D	#FFFFFF	#000000	##FFFFFF
##243A6D	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223F6F

Deuteranopia (green-blind)

#16396C

Tritanopia (blue-blind)

#00464E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243a6d;
/* rgb */ color: rgb(36, 58, 109);
/* oklch */ color: oklch(35.9% 0.093 264.6);

Tailwind

colors: {
  custom: {
    50: '#676f97',
    500: '#243a6d',
    950: '#000000',
  },
}

SCSS

$custom: #243a6d;
$custom-light: #676f97;
$custom-dark: #000000;

JSON

{
  "hex": "#243a6d",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 109
  },
  "hsl": {
    "h": 221.918,
    "s": 50.345,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35904,
    "c": 0.0926,
    "h": 264.6
  },
  "luminance": 0.04505
}

Semantic roles & 50–950 ramp

primary

#243A6D

secondary

#A0874D

accent

#B04EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243A6D

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

Preview Lab → · Contrast checker → · Palette generator →