#243E8E#243E8E

#243E8E is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.136 H 266.5°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#243E8E
RGB	rgb(36, 62, 142)
HSL	hsl(225, 60%, 35%)
HSV	hsv(225, 75%, 56%)
CMYK	cmyk(74.6%, 56.3%, 0%, 44.3%)
CIE-LAB	lab(28.83, 19.60, -47.28)
CIE-LCH	lch(28.83, 51.18, 292.51°)
OKLab	oklab(39.37% -0.0084 -0.1362)
OKLCH	oklch(39.37% 0.136 266.5)
XYZ	xyz(7.3310, 5.7725, 26.3138)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E8E #8E7424

analogous

#24738E #243E8E #3F248E

triadic

#243E8E #8E243E #3E8E24

tetradic

#243E8E #8E2473 #8E7424 #248E3F

square

#243E8E #8E2473 #8E7424 #248E3F

split-complementary

#243E8E #8E3F24 #738E24

monochromatic

#0B132C #18295D #243E8E #3053BF #5876D5

Accessibility & contrast

On white

9.75

#243E8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#243E8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E8E

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E8E	#FFFFFF	#000000	##FFFFFF
##243E8E	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004991

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#00525F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #243e8e;
/* rgb */ color: rgb(36, 62, 142);
/* oklch */ color: oklch(39.4% 0.136 266.5);

Tailwind

colors: {
  custom: {
    50: '#6e72b0',
    500: '#243e8e',
    950: '#000000',
  },
}

SCSS

$custom: #243e8e;
$custom-light: #6e72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#243e8e",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 142
  },
  "hsl": {
    "h": 225.283,
    "s": 59.551,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39368,
    "c": 0.13648,
    "h": 266.5
  },
  "luminance": 0.05773
}

Semantic roles & 50–950 ramp

primary

#243E8E

secondary

#B9A055

accent

#BC45E3

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #243E8E

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

Preview Lab → · Contrast checker → · Palette generator →