#151B6C#151B6C

#151B6C is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.137 H 270.7°. Best body text is #FFFFFF at 14.94:1 contrast (WCAG AA passes).

Color values

HEX	#151B6C
RGB	rgb(21, 27, 108)
HSL	hsl(236, 67%, 25%)
HSV	hsv(236, 81%, 42%)
CMYK	cmyk(80.6%, 75%, 0%, 57.6%)
CIE-LAB	lab(15.62, 28.56, -47.37)
CIE-LCH	lch(15.62, 55.31, 301.09°)
OKLab	oklab(28.44% 0.0017 -0.1371)
OKLCH	oklch(28.44% 0.137 270.7)
XYZ	xyz(3.4070, 2.0256, 14.3959)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B6C #6C6615

analogous

#15466C #151B6C #3A156C

triadic

#151B6C #6C151B #1B6C15

tetradic

#151B6C #6C1546 #6C6615 #156C3A

square

#151B6C #6C1546 #6C6615 #156C3A

split-complementary

#151B6C #6C3A15 #466C15

monochromatic

#05061A #0B0E39 #151B6C #1F289F #2935D2

Accessibility & contrast

On white

14.94

#151B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#151B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B6C

14.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B6C	#FFFFFF	#000000	##FFFFFF
##151B6C	1.00	14.94	1.41	14.94
#FFFFFF	14.94	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B6E

Deuteranopia (green-blind)

#00236B

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #151b6c;
/* rgb */ color: rgb(21, 27, 108);
/* oklch */ color: oklch(28.4% 0.137 270.7);

Tailwind

colors: {
  custom: {
    50: '#635897',
    500: '#151b6c',
    950: '#000000',
  },
}

SCSS

$custom: #151b6c;
$custom-light: #635897;
$custom-dark: #000000;

JSON

{
  "hex": "#151b6c",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 108
  },
  "hsl": {
    "h": 235.862,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28443,
    "c": 0.13715,
    "h": 270.7
  },
  "luminance": 0.02026
}

Semantic roles & 50–950 ramp

primary

#151B6C

secondary

#A39B3A

accent

#DE3DEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #151B6C

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

Preview Lab → · Contrast checker → · Palette generator →