#243C86#243C86

#243C86 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.128 H 266.7°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#243C86
RGB	rgb(36, 60, 134)
HSL	hsl(225, 58%, 33%)
HSV	hsv(225, 73%, 53%)
CMYK	cmyk(73.1%, 55.2%, 0%, 47.5%)
CIE-LAB	lab(27.65, 17.84, -44.25)
CIE-LCH	lch(27.65, 47.71, 291.96°)
OKLab	oklab(38.28% -0.0073 -0.1273)
OKLCH	oklch(38.28% 0.128 266.7)
XYZ	xyz(6.6450, 5.3273, 23.2277)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C86 #866E24

analogous

#246D86 #243C86 #3D2486

triadic

#243C86 #86243C #3C8624

tetradic

#243C86 #86246D #866E24 #24863D

square

#243C86 #86246D #866E24 #24863D

split-complementary

#243C86 #863D24 #6D8624

monochromatic

#0A1126 #172656 #243C86 #3152B6 #5372D1

Accessibility & contrast

On white

10.17

#243C86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#243C86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C86

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C86	#FFFFFF	#000000	##FFFFFF
##243C86	1.00	10.17	2.07	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054689

Deuteranopia (green-blind)

#003D85

Tritanopia (blue-blind)

#004E5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #243c86;
/* rgb */ color: rgb(36, 60, 134);
/* oklch */ color: oklch(38.3% 0.128 266.7);

Tailwind

colors: {
  custom: {
    50: '#6c71aa',
    500: '#243c86',
    950: '#000000',
  },
}

SCSS

$custom: #243c86;
$custom-light: #6c71aa;
$custom-dark: #000000;

JSON

{
  "hex": "#243c86",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 134
  },
  "hsl": {
    "h": 225.306,
    "s": 57.647,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3828,
    "c": 0.12754,
    "h": 266.7
  },
  "luminance": 0.05328
}

Semantic roles & 50–950 ramp

primary

#243C86

secondary

#B59C51

accent

#BB47E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243C86

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

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