#243B98#243B98

#243B98 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.6% C 0.154 H 267.9°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#243B98
RGB	rgb(36, 59, 152)
HSL	hsl(228, 62%, 37%)
HSV	hsv(228, 76%, 60%)
CMYK	cmyk(76.3%, 61.2%, 0%, 40.4%)
CIE-LAB	lab(28.82, 25.53, -53.43)
CIE-LCH	lch(28.82, 59.22, 295.54°)
OKLab	oklab(39.62% -0.0057 -0.1543)
OKLCH	oklch(39.62% 0.154 267.9)
XYZ	xyz(7.9570, 5.7691, 30.3939)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B98 #988124

analogous

#247598 #243B98 #472498

triadic

#243B98 #98243B #3B9824

tetradic

#243B98 #982475 #988124 #249847

square

#243B98 #982475 #988124 #249847

split-complementary

#243B98 #984724 #759824

monochromatic

#0D1535 #182867 #243B98 #304EC9 #5E76D9

Accessibility & contrast

On white

9.75

#243B98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#243B98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B98

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B98	#FFFFFF	#000000	##FFFFFF
##243B98	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9B

Deuteranopia (green-blind)

#003F96

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #243b98;
/* rgb */ color: rgb(36, 59, 152);
/* oklch */ color: oklch(39.6% 0.154 267.9);

Tailwind

colors: {
  custom: {
    50: '#7170b7',
    500: '#243b98',
    950: '#000000',
  },
}

SCSS

$custom: #243b98;
$custom-light: #7170b7;
$custom-dark: #000000;

JSON

{
  "hex": "#243b98",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 152
  },
  "hsl": {
    "h": 228.103,
    "s": 61.702,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39616,
    "c": 0.15443,
    "h": 267.9
  },
  "luminance": 0.0577
}

Semantic roles & 50–950 ramp

primary

#243B98

secondary

#BEAA5A

accent

#C543E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #243B98

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

Preview Lab → · Contrast checker → · Palette generator →