#151F45#151F45

#151F45 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.4% C 0.072 H 269.6°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#151F45
RGB	rgb(21, 31, 69)
HSL	hsl(228, 53%, 18%)
HSV	hsv(228, 70%, 27%)
CMYK	cmyk(69.6%, 55.1%, 0%, 72.9%)
CIE-LAB	lab(13.04, 9.88, -25.33)
CIE-LCH	lch(13.04, 27.19, 291.32°)
OKLab	oklab(25.4% -0.0006 -0.0725)
OKLCH	oklch(25.4% 0.072 269.6)
XYZ	xyz(1.8731, 1.5689, 5.8332)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F45 #453B15

analogous

#153745 #151F45 #231545

triadic

#151F45 #45151F #1F4515

tetradic

#151F45 #451537 #453B15 #154523

square

#151F45 #451537 #453B15 #154523

split-complementary

#151F45 #452315 #374515

monochromatic

#070B17 #070B17 #151F45 #233474 #3249A3

Accessibility & contrast

On white

15.98

#151F45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#151F45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F45

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F45	#FFFFFF	#000000	##FFFFFF
##151F45	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2446

Deuteranopia (green-blind)

#032044

Tritanopia (blue-blind)

#00282E

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #151f45;
/* rgb */ color: rgb(21, 31, 69);
/* oklch */ color: oklch(25.4% 0.072 269.6);

Tailwind

colors: {
  custom: {
    50: '#585a79',
    500: '#151f45',
    950: '#000000',
  },
}

SCSS

$custom: #151f45;
$custom-light: #585a79;
$custom-dark: #000000;

JSON

{
  "hex": "#151f45",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 69
  },
  "hsl": {
    "h": 227.5,
    "s": 53.333,
    "l": 17.647
  },
  "oklch": {
    "l": 0.25398,
    "c": 0.07248,
    "h": 269.6
  },
  "luminance": 0.01569
}

Semantic roles & 50–950 ramp

primary

#151F45

secondary

#7D6F39

accent

#BE4BDD

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #151F45

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

Preview Lab → · Contrast checker → · Palette generator →