#243A64#243A64

#243A64 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.3% C 0.079 H 262.2°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#243A64
RGB	rgb(36, 58, 100)
HSL	hsl(219, 47%, 27%)
HSV	hsv(219, 64%, 39%)
CMYK	cmyk(64%, 42%, 0%, 60.8%)
CIE-LAB	lab(24.71, 5.96, -27.41)
CIE-LCH	lch(24.71, 28.05, 282.28°)
OKLab	oklab(35.28% -0.0106 -0.0779)
OKLCH	oklch(35.28% 0.079 262.2)
XYZ	xyz(4.5401, 4.3209, 12.6489)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A64 #644E24

analogous

#245A64 #243A64 #2E2464

triadic

#243A64 #64243A #3A6424

tetradic

#243A64 #64245A #644E24 #24642E

square

#243A64 #64245A #644E24 #24642E

split-complementary

#243A64 #642E24 #5A6424

monochromatic

#080D17 #142037 #243A64 #345491 #466FBC

Accessibility & contrast

On white

11.26

#243A64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#243A64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A64

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A64	#FFFFFF	#000000	##FFFFFF
##243A64	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283E66

Deuteranopia (green-blind)

#1F3863

Tritanopia (blue-blind)

#00434A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243a64;
/* rgb */ color: rgb(36, 58, 100);
/* oklch */ color: oklch(35.3% 0.079 262.2);

Tailwind

colors: {
  custom: {
    50: '#656f90',
    500: '#243a64',
    950: '#000000',
  },
}

SCSS

$custom: #243a64;
$custom-light: #656f90;
$custom-dark: #000000;

JSON

{
  "hex": "#243a64",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 100
  },
  "hsl": {
    "h": 219.375,
    "s": 47.059,
    "l": 26.667
  },
  "oklch": {
    "l": 0.3528,
    "c": 0.07858,
    "h": 262.2
  },
  "luminance": 0.04321
}

Semantic roles & 50–950 ramp

primary

#243A64

secondary

#977E4C

accent

#A951D7

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #243A64

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

Preview Lab → · Contrast checker → · Palette generator →