#151F5C#151F5C

#151F5C is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.5% C 0.109 H 270.3°. Best body text is #FFFFFF at 15.19:1 contrast (WCAG AA passes).

Color values

HEX	#151F5C
RGB	rgb(21, 31, 92)
HSL	hsl(232, 63%, 22%)
HSV	hsv(232, 77%, 36%)
CMYK	cmyk(77.2%, 66.3%, 0%, 63.9%)
CIE-LAB	lab(15.02, 19.44, -37.79)
CIE-LCH	lch(15.02, 42.50, 297.22°)
OKLab	oklab(27.5% 0.0006 -0.1091)
OKLCH	oklch(27.5% 0.109 270.3)
XYZ	xyz(2.7304, 1.9118, 10.3483)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F5C #5C5215

analogous

#15435C #151F5C #2E155C

triadic

#151F5C #5C151F #1F5C15

tetradic

#151F5C #5C1543 #5C5215 #155C2E

square

#151F5C #5C1543 #5C5215 #155C2E

split-complementary

#151F5C #5C2E15 #435C15

monochromatic

#060819 #0A0E2A #151F5C #20308E #2C41C0

Accessibility & contrast

On white

15.19

#151F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#151F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F5C

15.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F5C	#FFFFFF	#000000	##FFFFFF
##151F5C	1.00	15.19	1.38	15.19
#FFFFFF	15.19	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295E

Deuteranopia (green-blind)

#00225B

Tritanopia (blue-blind)

#002F3A

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #151f5c;
/* rgb */ color: rgb(21, 31, 92);
/* oklch */ color: oklch(27.5% 0.109 270.3);

Tailwind

colors: {
  custom: {
    50: '#5e5a8b',
    500: '#151f5c',
    950: '#000000',
  },
}

SCSS

$custom: #151f5c;
$custom-light: #5e5a8b;
$custom-dark: #000000;

JSON

{
  "hex": "#151f5c",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 92
  },
  "hsl": {
    "h": 231.549,
    "s": 62.832,
    "l": 22.157
  },
  "oklch": {
    "l": 0.27503,
    "c": 0.10913,
    "h": 270.3
  },
  "luminance": 0.01912
}

Semantic roles & 50–950 ramp

primary

#151F5C

secondary

#938739

accent

#CF42E6

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #151F5C

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

Preview Lab → · Contrast checker → · Palette generator →