#18177E#18177E

#18177E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.164 H 271.2°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#18177E
RGB	rgb(24, 23, 126)
HSL	hsl(241, 69%, 29%)
HSV	hsv(241, 82%, 49%)
CMYK	cmyk(81%, 81.7%, 0%, 50.6%)
CIE-LAB	lab(17.05, 37.72, -56.61)
CIE-LCH	lch(17.05, 68.02, 303.68°)
OKLab	oklab(30.12% 0.0036 -0.1639)
OKLCH	oklch(30.12% 0.164 271.2)
XYZ	xyz(4.4477, 2.3128, 19.9466)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18177E #7D7E17

analogous

#17497E #18177E #4C177E

triadic

#18177E #7E1817 #177E18

tetradic

#18177E #7E1749 #7D7E17 #177E4C

square

#18177E #7E1749 #7D7E17 #177E4C

split-complementary

#18177E #7E4C17 #497E17

monochromatic

#05051A #0E0E4A #18177E #2220B2 #3735DA

Accessibility & contrast

On white

14.36

#18177E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#18177E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18177E

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18177E	#FFFFFF	#000000	##FFFFFF
##18177E	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00257C

Tritanopia (blue-blind)

#00374A

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18177e;
/* rgb */ color: rgb(24, 23, 126);
/* oklch */ color: oklch(30.1% 0.164 271.2);

Tailwind

colors: {
  custom: {
    50: '#6a56a5',
    500: '#18177e',
    950: '#000000',
  },
}

SCSS

$custom: #18177e;
$custom-light: #6a56a5;
$custom-dark: #000000;

JSON

{
  "hex": "#18177e",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 126
  },
  "hsl": {
    "h": 240.583,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.30124,
    "c": 0.16391,
    "h": 271.2
  },
  "luminance": 0.02313
}

Semantic roles & 50–950 ramp

primary

#18177E

secondary

#B2B33E

accent

#EC3CEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #18177E

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

Preview Lab → · Contrast checker → · Palette generator →