#243AA0#243AA0

#243AA0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.2% C 0.167 H 268.2°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#243AA0
RGB	rgb(36, 58, 160)
HSL	hsl(229, 63%, 38%)
HSV	hsv(229, 78%, 63%)
CMYK	cmyk(77.5%, 63.8%, 0%, 37.3%)
CIE-LAB	lab(29.26, 29.26, -57.58)
CIE-LCH	lch(29.26, 64.59, 296.93°)
OKLab	oklab(40.15% -0.0051 -0.1665)
OKLCH	oklch(40.15% 0.167 268.2)
XYZ	xyz(8.5836, 5.9383, 33.9447)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243AA0 #A08A24

analogous

#2478A0 #243AA0 #4C24A0

triadic

#243AA0 #A0243A #3AA024

tetradic

#243AA0 #A02478 #A08A24 #24A04C

square

#243AA0 #A02478 #A08A24 #24A04C

split-complementary

#243AA0 #A04C24 #78A024

monochromatic

#0E163C #19286E #243AA0 #314DD1 #6378DC

Accessibility & contrast

On white

9.60

#243AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#243AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243AA0

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243AA0	#FFFFFF	#000000	##FFFFFF
##243AA0	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #243aa0;
/* rgb */ color: rgb(36, 58, 160);
/* oklch */ color: oklch(40.2% 0.167 268.2);

Tailwind

colors: {
  custom: {
    50: '#7370bd',
    500: '#243aa0',
    950: '#000000',
  },
}

SCSS

$custom: #243aa0;
$custom-light: #7370bd;
$custom-dark: #000000;

JSON

{
  "hex": "#243aa0",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 160
  },
  "hsl": {
    "h": 229.355,
    "s": 63.265,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40153,
    "c": 0.1666,
    "h": 268.2
  },
  "luminance": 0.05939
}

Semantic roles & 50–950 ramp

primary

#243AA0

secondary

#C1B05F

accent

#C941E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #243AA0

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

Preview Lab → · Contrast checker → · Palette generator →