#18297E#18297E

#18297E is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.144 H 268.2°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#18297E
RGB	rgb(24, 41, 126)
HSL	hsl(230, 68%, 29%)
HSV	hsv(230, 81%, 49%)
CMYK	cmyk(81%, 67.5%, 0%, 50.6%)
CIE-LAB	lab(21.15, 26.37, -49.84)
CIE-LCH	lch(21.15, 56.38, 297.89°)
OKLab	oklab(33.07% -0.0046 -0.1442)
OKLCH	oklch(33.07% 0.144 268.2)
XYZ	xyz(4.9342, 3.2859, 20.1088)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18297E #7E6D18

analogous

#185C7E #18297E #3A187E

triadic

#18297E #7E1829 #297E18

tetradic

#18297E #7E185C #7E6D18 #187E3A

square

#18297E #7E185C #7E6D18 #187E3A

split-complementary

#18297E #7E3A18 #5C7E18

monochromatic

#05081A #0E184B #18297E #223AB1 #3752D9

Accessibility & contrast

On white

12.67

#18297E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#18297E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18297E

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18297E	#FFFFFF	#000000	##FFFFFF
##18297E	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003881

Deuteranopia (green-blind)

#002E7C

Tritanopia (blue-blind)

#00404F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18297e;
/* rgb */ color: rgb(24, 41, 126);
/* oklch */ color: oklch(33.1% 0.144 268.2);

Tailwind

colors: {
  custom: {
    50: '#6862a4',
    500: '#18297e',
    950: '#000000',
  },
}

SCSS

$custom: #18297e;
$custom-light: #6862a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18297e",
  "rgb": {
    "r": 24,
    "g": 41,
    "b": 126
  },
  "hsl": {
    "h": 230,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.33068,
    "c": 0.14431,
    "h": 268.2
  },
  "luminance": 0.03286
}

Semantic roles & 50–950 ramp

primary

#18297E

secondary

#B29F3F

accent

#CE3DEB

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #18297E

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

Preview Lab → · Contrast checker → · Palette generator →