#243A90#243A90

#243A90 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.145 H 268.0°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#243A90
RGB	rgb(36, 58, 144)
HSL	hsl(228, 60%, 35%)
HSV	hsv(228, 75%, 56%)
CMYK	cmyk(75%, 59.7%, 0%, 43.5%)
CIE-LAB	lab(27.88, 23.12, -50.05)
CIE-LCH	lch(27.88, 55.14, 294.79°)
OKLab	oklab(38.71% -0.0051 -0.1444)
OKLCH	oklch(38.71% 0.145 268)
XYZ	xyz(7.2729, 5.4140, 27.0419)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A90 #907A24

analogous

#247090 #243A90 #442490

triadic

#243A90 #90243A #3A9024

tetradic

#243A90 #902470 #907A24 #249044

square

#243A90 #902470 #907A24 #249044

split-complementary

#243A90 #904424 #709024

monochromatic

#0C132E #18265F #243A90 #304EC1 #5972D5

Accessibility & contrast

On white

10.08

#243A90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#243A90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A90

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A90	#FFFFFF	#000000	##FFFFFF
##243A90	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004793

Deuteranopia (green-blind)

#003D8E

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #243a90;
/* rgb */ color: rgb(36, 58, 144);
/* oklch */ color: oklch(38.7% 0.145 268.0);

Tailwind

colors: {
  custom: {
    50: '#6f6fb1',
    500: '#243a90',
    950: '#000000',
  },
}

SCSS

$custom: #243a90;
$custom-light: #6f6fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#243a90",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 144
  },
  "hsl": {
    "h": 227.778,
    "s": 60,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38707,
    "c": 0.14452,
    "h": 268
  },
  "luminance": 0.05415
}

Semantic roles & 50–950 ramp

primary

#243A90

secondary

#BAA656

accent

#C345E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #243A90

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

Preview Lab → · Contrast checker → · Palette generator →