#18247A#18247A

#18247A is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.145 H 269.4°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#18247A
RGB	rgb(24, 36, 122)
HSL	hsl(233, 67%, 29%)
HSV	hsv(233, 80%, 48%)
CMYK	cmyk(80.3%, 70.5%, 0%, 52.2%)
CIE-LAB	lab(19.48, 28.22, -50.05)
CIE-LCH	lch(19.48, 57.46, 299.42°)
OKLab	oklab(31.72% -0.0015 -0.1449)
OKLCH	oklch(31.72% 0.145 269.4)
XYZ	xyz(4.5192, 2.8606, 18.7225)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18247A #7A6E18

analogous

#18557A #18247A #3D187A

triadic

#18247A #7A1824 #247A18

tetradic

#18247A #7A1855 #7A6E18 #187A3D

square

#18247A #7A1855 #7A6E18 #187A3D

split-complementary

#18247A #7A3D18 #557A18

monochromatic

#05081A #0E1547 #18247A #2233AD #3549D7

Accessibility & contrast

On white

13.36

#18247A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#18247A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18247A

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18247A	#FFFFFF	#000000	##FFFFFF
##18247A	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #18247a;
/* rgb */ color: rgb(24, 36, 122);
/* oklch */ color: oklch(31.7% 0.145 269.4);

Tailwind

colors: {
  custom: {
    50: '#675fa1',
    500: '#18247a',
    950: '#000000',
  },
}

SCSS

$custom: #18247a;
$custom-light: #675fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#18247a",
  "rgb": {
    "r": 24,
    "g": 36,
    "b": 122
  },
  "hsl": {
    "h": 232.653,
    "s": 67.123,
    "l": 28.627
  },
  "oklch": {
    "l": 0.31722,
    "c": 0.1449,
    "h": 269.4
  },
  "luminance": 0.02861
}

Semantic roles & 50–950 ramp

primary

#18247A

secondary

#AFA13F

accent

#D53EEA

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #18247A

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

Preview Lab → · Contrast checker → · Palette generator →