#151F6F#151F6F

#151F6F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.5% C 0.137 H 269.7°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#151F6F
RGB	rgb(21, 31, 111)
HSL	hsl(233, 68%, 26%)
HSV	hsv(233, 81%, 44%)
CMYK	cmyk(81.1%, 72.1%, 0%, 56.5%)
CIE-LAB	lab(16.93, 27.04, -47.17)
CIE-LCH	lch(16.93, 54.37, 299.82°)
OKLab	oklab(29.48% -0.0008 -0.1366)
OKLCH	oklch(29.48% 0.137 269.7)
XYZ	xyz(3.6675, 2.2867, 15.2839)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F6F #6F6515

analogous

#154C6F #151F6F #38156F

triadic

#151F6F #6F151F #1F6F15

tetradic

#151F6F #6F154C #6F6515 #156F38

square

#151F6F #6F154C #6F6515 #156F38

split-complementary

#151F6F #6F3815 #4C6F15

monochromatic

#05071A #0B113C #151F6F #1F2DA2 #283CD6

Accessibility & contrast

On white

14.41

#151F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#151F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F6F

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F6F	#FFFFFF	#000000	##FFFFFF
##151F6F	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E71

Deuteranopia (green-blind)

#00256E

Tritanopia (blue-blind)

#003544

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #151f6f;
/* rgb */ color: rgb(21, 31, 111);
/* oklch */ color: oklch(29.5% 0.137 269.7);

Tailwind

colors: {
  custom: {
    50: '#645b99',
    500: '#151f6f',
    950: '#000000',
  },
}

SCSS

$custom: #151f6f;
$custom-light: #645b99;
$custom-dark: #000000;

JSON

{
  "hex": "#151f6f",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 111
  },
  "hsl": {
    "h": 233.333,
    "s": 68.182,
    "l": 25.882
  },
  "oklch": {
    "l": 0.29481,
    "c": 0.13657,
    "h": 269.7
  },
  "luminance": 0.02287
}

Semantic roles & 50–950 ramp

primary

#151F6F

secondary

#A5993A

accent

#D83DEB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #151F6F

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

Preview Lab → · Contrast checker → · Palette generator →