#151C5F#151C5F

#151C5F is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.2% C 0.118 H 271.3°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#151C5F
RGB	rgb(21, 28, 95)
HSL	hsl(234, 64%, 23%)
HSV	hsv(234, 78%, 37%)
CMYK	cmyk(77.9%, 70.5%, 0%, 62.7%)
CIE-LAB	lab(14.49, 22.81, -40.66)
CIE-LCH	lch(14.49, 46.62, 299.29°)
OKLab	oklab(27.21% 0.0027 -0.1175)
OKLCH	oklch(27.21% 0.118 271.3)
XYZ	xyz(2.7894, 1.8159, 11.0277)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C5F #5F5815

analogous

#15415F #151C5F #33155F

triadic

#151C5F #5F151C #1C5F15

tetradic

#151C5F #5F1541 #5F5815 #155F33

square

#151C5F #5F1541 #5F5815 #155F33

split-complementary

#151C5F #5F3315 #415F15

monochromatic

#060719 #0A0D2D #151C5F #202B91 #2B3AC3

Accessibility & contrast

On white

15.40

#151C5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#151C5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C5F

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C5F	#FFFFFF	#000000	##FFFFFF
##151C5F	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002861

Deuteranopia (green-blind)

#00215E

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151c5f;
/* rgb */ color: rgb(21, 28, 95);
/* oklch */ color: oklch(27.2% 0.118 271.3);

Tailwind

colors: {
  custom: {
    50: '#5f588d',
    500: '#151c5f',
    950: '#000000',
  },
}

SCSS

$custom: #151c5f;
$custom-light: #5f588d;
$custom-dark: #000000;

JSON

{
  "hex": "#151c5f",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 95
  },
  "hsl": {
    "h": 234.324,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27206,
    "c": 0.11758,
    "h": 271.3
  },
  "luminance": 0.01816
}

Semantic roles & 50–950 ramp

primary

#151C5F

secondary

#968E3A

accent

#D741E7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #151C5F

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

Preview Lab → · Contrast checker → · Palette generator →