#243BA0#243BA0

#243BA0 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.3% C 0.165 H 268.0°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#243BA0
RGB	rgb(36, 59, 160)
HSL	hsl(229, 63%, 38%)
HSV	hsv(229, 78%, 63%)
CMYK	cmyk(77.5%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(29.51, 28.59, -57.16)
CIE-LCH	lch(29.51, 63.92, 296.57°)
OKLab	oklab(40.34% -0.0058 -0.1653)
OKLCH	oklch(40.34% 0.165 268)
XYZ	xyz(8.6345, 6.0401, 33.9617)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243BA0 #A08924

analogous

#2479A0 #243BA0 #4B24A0

triadic

#243BA0 #A0243B #3BA024

tetradic

#243BA0 #A02479 #A08924 #24A04B

square

#243BA0 #A02479 #A08924 #24A04B

split-complementary

#243BA0 #A04B24 #79A024

monochromatic

#0E163C #19296E #243BA0 #314ED1 #6379DC

Accessibility & contrast

On white

9.51

#243BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#243BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243BA0

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243BA0	#FFFFFF	#000000	##FFFFFF
##243BA0	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA3

Deuteranopia (green-blind)

#00409E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #243ba0;
/* rgb */ color: rgb(36, 59, 160);
/* oklch */ color: oklch(40.3% 0.165 268.0);

Tailwind

colors: {
  custom: {
    50: '#7370bd',
    500: '#243ba0',
    950: '#000000',
  },
}

SCSS

$custom: #243ba0;
$custom-light: #7370bd;
$custom-dark: #000000;

JSON

{
  "hex": "#243ba0",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 228.871,
    "s": 63.265,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40343,
    "c": 0.16538,
    "h": 268
  },
  "luminance": 0.06041
}

Semantic roles & 50–950 ramp

primary

#243BA0

secondary

#C1AF5F

accent

#C841E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #243BA0

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

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