#151F6C#151F6C

#151F6C is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.2% C 0.132 H 269.8°. Best body text is #FFFFFF at 14.54:1 contrast (WCAG AA passes).

Color values

HEX	#151F6C
RGB	rgb(21, 31, 108)
HSL	hsl(233, 67%, 25%)
HSV	hsv(233, 81%, 42%)
CMYK	cmyk(80.6%, 71.3%, 0%, 57.6%)
CIE-LAB	lab(16.61, 25.87, -45.74)
CIE-LCH	lch(16.61, 52.55, 299.49°)
OKLab	oklab(29.16% -0.0005 -0.1324)
OKLCH	oklch(29.16% 0.132 269.8)
XYZ	xyz(3.5051, 2.2217, 14.4286)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F6C #6C6215

analogous

#154B6C #151F6C #36156C

triadic

#151F6C #6C151F #1F6C15

tetradic

#151F6C #6C154B #6C6215 #156C36

square

#151F6C #6C154B #6C6215 #156C36

split-complementary

#151F6C #6C3615 #4B6C15

monochromatic

#05071A #0B1039 #151F6C #1F2E9F #293CD2

Accessibility & contrast

On white

14.54

#151F6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#151F6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F6C

14.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F6C	#FFFFFF	#000000	##FFFFFF
##151F6C	1.00	14.54	1.44	14.54
#FFFFFF	14.54	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6E

Deuteranopia (green-blind)

#00256B

Tritanopia (blue-blind)

#003442

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #151f6c;
/* rgb */ color: rgb(21, 31, 108);
/* oklch */ color: oklch(29.2% 0.132 269.8);

Tailwind

colors: {
  custom: {
    50: '#635a97',
    500: '#151f6c',
    950: '#000000',
  },
}

SCSS

$custom: #151f6c;
$custom-light: #635a97;
$custom-dark: #000000;

JSON

{
  "hex": "#151f6c",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 108
  },
  "hsl": {
    "h": 233.103,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.29158,
    "c": 0.13239,
    "h": 269.8
  },
  "luminance": 0.02222
}

Semantic roles & 50–950 ramp

primary

#151F6C

secondary

#A3973A

accent

#D63DEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #151F6C

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

Preview Lab → · Contrast checker → · Palette generator →