#151571#151571

#151571 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.150 H 271.3°. Best body text is #FFFFFF at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#151571
RGB	rgb(21, 21, 113)
HSL	hsl(240, 69%, 26%)
HSV	hsv(240, 81%, 44%)
CMYK	cmyk(81.4%, 81.4%, 0%, 55.7%)
CIE-LAB	lab(14.89, 34.12, -51.84)
CIE-LCH	lch(14.89, 62.06, 303.35°)
OKLab	oklab(28.09% 0.0034 -0.1501)
OKLCH	oklch(28.09% 0.15 271.3)
XYZ	xyz(3.5571, 1.8876, 15.7965)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151571 #717115

analogous

#154371 #151571 #431571

triadic

#151571 #711515 #157115

tetradic

#151571 #711543 #717115 #157143

square

#151571 #711543 #717115 #157143

split-complementary

#151571 #714315 #437115

monochromatic

#05051A #0B0B3D #151571 #1F1FA5 #2929D7

Accessibility & contrast

On white

15.24

#151571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#151571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151571

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151571	#FFFFFF	#000000	##FFFFFF
##151571	1.00	15.24	1.38	15.24
#FFFFFF	15.24	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A74

Deuteranopia (green-blind)

#00216F

Tritanopia (blue-blind)

#003143

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151571;
/* rgb */ color: rgb(21, 21, 113);
/* oklch */ color: oklch(28.1% 0.150 271.3);

Tailwind

colors: {
  custom: {
    50: '#65549b',
    500: '#151571',
    950: '#000000',
  },
}

SCSS

$custom: #151571;
$custom-light: #65549b;
$custom-dark: #000000;

JSON

{
  "hex": "#151571",
  "rgb": {
    "r": 21,
    "g": 21,
    "b": 113
  },
  "hsl": {
    "h": 240,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28094,
    "c": 0.15012,
    "h": 271.3
  },
  "luminance": 0.01888
}

Semantic roles & 50–950 ramp

primary

#151571

secondary

#A7A73B

accent

#EB3CEB

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #151571

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

Preview Lab → · Contrast checker → · Palette generator →