#151D6C#151D6C

#151D6C is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.135 H 270.3°. Best body text is #FFFFFF at 14.75:1 contrast (WCAG AA passes).

Color values

HEX	#151D6C
RGB	rgb(21, 29, 108)
HSL	hsl(234, 67%, 25%)
HSV	hsv(234, 81%, 42%)
CMYK	cmyk(80.6%, 73.1%, 0%, 57.6%)
CIE-LAB	lab(16.11, 27.23, -46.57)
CIE-LCH	lch(16.11, 53.94, 300.32°)
OKLab	oklab(28.79% 0.0007 -0.1348)
OKLCH	oklch(28.79% 0.135 270.3)
XYZ	xyz(3.4545, 2.1205, 14.4117)
Luminance	0.0212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D6C #6C6415

analogous

#15486C #151D6C #39156C

triadic

#151D6C #6C151D #1D6C15

tetradic

#151D6C #6C1548 #6C6415 #156C39

square

#151D6C #6C1548 #6C6415 #156C39

split-complementary

#151D6C #6C3915 #486C15

monochromatic

#05071A #0B0F39 #151D6C #1F2B9F #2939D2

Accessibility & contrast

On white

14.75

#151D6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#151D6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D6C

14.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D6C	#FFFFFF	#000000	##FFFFFF
##151D6C	1.00	14.75	1.42	14.75
#FFFFFF	14.75	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6E

Deuteranopia (green-blind)

#00246B

Tritanopia (blue-blind)

#003342

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #151d6c;
/* rgb */ color: rgb(21, 29, 108);
/* oklch */ color: oklch(28.8% 0.135 270.3);

Tailwind

colors: {
  custom: {
    50: '#635997',
    500: '#151d6c',
    950: '#000000',
  },
}

SCSS

$custom: #151d6c;
$custom-light: #635997;
$custom-dark: #000000;

JSON

{
  "hex": "#151d6c",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 108
  },
  "hsl": {
    "h": 234.483,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28793,
    "c": 0.13481,
    "h": 270.3
  },
  "luminance": 0.02121
}

Semantic roles & 50–950 ramp

primary

#151D6C

secondary

#A3993A

accent

#DA3DEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #151D6C

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

Preview Lab → · Contrast checker → · Palette generator →