#243D91#243D91

#243D91 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.142 H 267.0°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#243D91
RGB	rgb(36, 61, 145)
HSL	hsl(226, 60%, 35%)
HSV	hsv(226, 75%, 57%)
CMYK	cmyk(75.2%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(28.79, 21.46, -49.20)
CIE-LCH	lch(28.79, 53.67, 293.56°)
OKLab	oklab(39.41% -0.0074 -0.1419)
OKLCH	oklch(39.41% 0.142 267)
XYZ	xyz(7.5054, 5.7561, 27.4981)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D91 #917824

analogous

#247391 #243D91 #422491

triadic

#243D91 #91243D #3D9124

tetradic

#243D91 #912473 #917824 #249142

square

#243D91 #912473 #917824 #249142

split-complementary

#243D91 #914224 #739124

monochromatic

#0C142F #182860 #243D91 #3052C2 #5976D6

Accessibility & contrast

On white

9.76

#243D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#243D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D91

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D91	#FFFFFF	#000000	##FFFFFF
##243D91	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003F8F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #243d91;
/* rgb */ color: rgb(36, 61, 145);
/* oklch */ color: oklch(39.4% 0.142 267.0);

Tailwind

colors: {
  custom: {
    50: '#6f72b2',
    500: '#243d91',
    950: '#000000',
  },
}

SCSS

$custom: #243d91;
$custom-light: #6f72b2;
$custom-dark: #000000;

JSON

{
  "hex": "#243d91",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 226.239,
    "s": 60.221,
    "l": 35.49
  },
  "oklch": {
    "l": 0.3941,
    "c": 0.14205,
    "h": 267
  },
  "luminance": 0.05757
}

Semantic roles & 50–950 ramp

primary

#243D91

secondary

#BAA356

accent

#BF44E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #243D91

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

Preview Lab → · Contrast checker → · Palette generator →