#18307E#18307E

#18307E is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.5% C 0.135 H 266.2°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#18307E
RGB	rgb(24, 48, 126)
HSL	hsl(226, 68%, 29%)
HSV	hsv(226, 81%, 49%)
CMYK	cmyk(81%, 61.9%, 0%, 50.6%)
CIE-LAB	lab(23.05, 21.49, -46.74)
CIE-LCH	lch(23.05, 51.44, 294.69°)
OKLab	oklab(34.47% -0.0091 -0.1351)
OKLCH	oklch(34.47% 0.135 266.2)
XYZ	xyz(5.1982, 3.8139, 20.1968)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18307E #7E6618

analogous

#18637E #18307E #33187E

triadic

#18307E #7E1830 #307E18

tetradic

#18307E #7E1863 #7E6618 #187E33

square

#18307E #7E1863 #7E6618 #187E33

split-complementary

#18307E #7E3318 #637E18

monochromatic

#050A1A #0E1C4B #18307E #2244B1 #375DD9

Accessibility & contrast

On white

11.91

#18307E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#18307E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18307E

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18307E	#FFFFFF	#000000	##FFFFFF
##18307E	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C81

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18307e;
/* rgb */ color: rgb(24, 48, 126);
/* oklch */ color: oklch(34.5% 0.135 266.2);

Tailwind

colors: {
  custom: {
    50: '#6767a4',
    500: '#18307e',
    950: '#000000',
  },
}

SCSS

$custom: #18307e;
$custom-light: #6767a4;
$custom-dark: #000000;

JSON

{
  "hex": "#18307e",
  "rgb": {
    "r": 24,
    "g": 48,
    "b": 126
  },
  "hsl": {
    "h": 225.882,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.34468,
    "c": 0.13538,
    "h": 266.2
  },
  "luminance": 0.03814
}

Semantic roles & 50–950 ramp

primary

#18307E

secondary

#B2973F

accent

#C23DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18307E

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

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