#181A7F#181A7F

#181A7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.162 H 270.8°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#181A7F
RGB	rgb(24, 26, 127)
HSL	hsl(239, 68%, 30%)
HSV	hsv(239, 81%, 50%)
CMYK	cmyk(81.1%, 79.5%, 0%, 50.2%)
CIE-LAB	lab(17.76, 36.38, -56.07)
CIE-LCH	lch(17.76, 66.83, 302.98°)
OKLab	oklab(30.66% 0.0023 -0.1624)
OKLCH	oklch(30.66% 0.162 270.8)
XYZ	xyz(4.5755, 2.4648, 20.3092)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A7F #7F7D18

analogous

#184E7F #181A7F #4A187F

triadic

#181A7F #7F181A #1A7F18

tetradic

#181A7F #7F184E #7F7D18 #187F4A

square

#181A7F #7F184E #7F7D18 #187F4A

split-complementary

#181A7F #7F4A18 #4E7F18

monochromatic

#05051A #0E0F4C #181A7F #2225B2 #383BD9

Accessibility & contrast

On white

14.07

#181A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#181A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A7F

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A7F	#FFFFFF	#000000	##FFFFFF
##181A7F	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00267D

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #181a7f;
/* rgb */ color: rgb(24, 26, 127);
/* oklch */ color: oklch(30.7% 0.162 270.8);

Tailwind

colors: {
  custom: {
    50: '#6a58a5',
    500: '#181a7f',
    950: '#000000',
  },
}

SCSS

$custom: #181a7f;
$custom-light: #6a58a5;
$custom-dark: #000000;

JSON

{
  "hex": "#181a7f",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 127
  },
  "hsl": {
    "h": 238.835,
    "s": 68.212,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30656,
    "c": 0.16238,
    "h": 270.8
  },
  "luminance": 0.02465
}

Semantic roles & 50–950 ramp

primary

#181A7F

secondary

#B3B13F

accent

#E83DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #181A7F

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

Preview Lab → · Contrast checker → · Palette generator →