#243B87#243B87

#243B87 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.1% C 0.130 H 267.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#243B87
RGB	rgb(36, 59, 135)
HSL	hsl(226, 58%, 34%)
HSV	hsv(226, 73%, 53%)
CMYK	cmyk(73.3%, 56.3%, 0%, 47.1%)
CIE-LAB	lab(27.44, 18.93, -45.21)
CIE-LCH	lch(27.44, 49.01, 292.72°)
OKLab	oklab(38.15% -0.0064 -0.1302)
OKLCH	oklch(38.15% 0.13 267.2)
XYZ	xyz(6.6632, 5.2516, 23.5795)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B87 #877024

analogous

#246C87 #243B87 #3E2487

triadic

#243B87 #87243B #3B8724

tetradic

#243B87 #87246C #877024 #24873E

square

#243B87 #87246C #877024 #24873E

split-complementary

#243B87 #873E24 #6C8724

monochromatic

#0A1126 #172657 #243B87 #3150B7 #5471D1

Accessibility & contrast

On white

10.24

#243B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#243B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B87

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B87	#FFFFFF	#000000	##FFFFFF
##243B87	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468A

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #243b87;
/* rgb */ color: rgb(36, 59, 135);
/* oklch */ color: oklch(38.1% 0.130 267.2);

Tailwind

colors: {
  custom: {
    50: '#6d70ab',
    500: '#243b87',
    950: '#000000',
  },
}

SCSS

$custom: #243b87;
$custom-light: #6d70ab;
$custom-dark: #000000;

JSON

{
  "hex": "#243b87",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 135
  },
  "hsl": {
    "h": 226.061,
    "s": 57.895,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38148,
    "c": 0.13032,
    "h": 267.2
  },
  "luminance": 0.05252
}

Semantic roles & 50–950 ramp

primary

#243B87

secondary

#B59E51

accent

#BD47E1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #243B87

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

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