#153571#153571

#153571 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.3% C 0.111 H 261.5°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#153571
RGB	rgb(21, 53, 113)
HSL	hsl(219, 69%, 26%)
HSV	hsv(219, 81%, 44%)
CMYK	cmyk(81.4%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(23.33, 12.18, -38.02)
CIE-LCH	lch(23.33, 39.92, 287.77°)
OKLab	oklab(34.31% -0.0163 -0.1094)
OKLCH	oklch(34.31% 0.111 261.5)
XYZ	xyz(4.5619, 3.8974, 16.1314)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153571 #715115

analogous

#156371 #153571 #231571

triadic

#153571 #711535 #357115

tetradic

#153571 #711563 #715115 #157123

square

#153571 #711563 #715115 #157123

split-complementary

#153571 #712315 #637115

monochromatic

#050C1A #0B1D3D #153571 #1F4DA5 #2966D7

Accessibility & contrast

On white

11.80

#153571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153571

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153571	#FFFFFF	#000000	##FFFFFF
##153571	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3C73

Deuteranopia (green-blind)

#003470

Tritanopia (blue-blind)

#00434D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153571;
/* rgb */ color: rgb(21, 53, 113);
/* oklch */ color: oklch(34.3% 0.111 261.5);

Tailwind

colors: {
  custom: {
    50: '#626b9a',
    500: '#153571',
    950: '#000000',
  },
}

SCSS

$custom: #153571;
$custom-light: #626b9a;
$custom-dark: #000000;

JSON

{
  "hex": "#153571",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 219.13,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.34314,
    "c": 0.11062,
    "h": 261.5
  },
  "luminance": 0.03898
}

Semantic roles & 50–950 ramp

primary

#153571

secondary

#A7813B

accent

#AF3CEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #153571

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

Preview Lab → · Contrast checker → · Palette generator →