#243B7E#243B7E

#243B7E is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.117 H 266.5°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#243B7E
RGB	rgb(36, 59, 126)
HSL	hsl(225, 56%, 32%)
HSV	hsv(225, 71%, 49%)
CMYK	cmyk(71.4%, 53.2%, 0%, 50.6%)
CIE-LAB	lab(26.76, 15.40, -40.69)
CIE-LCH	lch(26.76, 43.50, 290.73°)
OKLab	oklab(37.42% -0.0072 -0.1169)
OKLCH	oklch(37.42% 0.117 266.5)
XYZ	xyz(6.0561, 5.0088, 20.3822)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B7E #7E6724

analogous

#24687E #243B7E #3A247E

triadic

#243B7E #7E243B #3B7E24

tetradic

#243B7E #7E2468 #7E6724 #247E3A

square

#243B7E #7E2468 #7E6724 #247E3A

split-complementary

#243B7E #7E3A24 #687E24

monochromatic

#090E1F #16254E #243B7E #3251AE #5070CD

Accessibility & contrast

On white

10.49

#243B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#243B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B7E

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B7E	#FFFFFF	#000000	##FFFFFF
##243B7E	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124480

Deuteranopia (green-blind)

#003B7D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243b7e;
/* rgb */ color: rgb(36, 59, 126);
/* oklch */ color: oklch(37.4% 0.117 266.5);

Tailwind

colors: {
  custom: {
    50: '#6b70a4',
    500: '#243b7e',
    950: '#000000',
  },
}

SCSS

$custom: #243b7e;
$custom-light: #6b70a4;
$custom-dark: #000000;

JSON

{
  "hex": "#243b7e",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 224.667,
    "s": 55.556,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37418,
    "c": 0.11708,
    "h": 266.5
  },
  "luminance": 0.05009
}

Semantic roles & 50–950 ramp

primary

#243B7E

secondary

#B0974E

accent

#B949DF

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #243B7E

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

Preview Lab → · Contrast checker → · Palette generator →