#1637A0#1637A0

#1637A0 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.0% C 0.174 H 265.2°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#1637A0
RGB	rgb(22, 55, 160)
HSL	hsl(226, 76%, 36%)
HSV	hsv(226, 86%, 63%)
CMYK	cmyk(86.3%, 65.6%, 0%, 37.3%)
CIE-LAB	lab(27.95, 30.03, -59.74)
CIE-LCH	lch(27.95, 66.87, 296.69°)
OKLab	oklab(39.04% -0.0146 -0.1731)
OKLCH	oklch(39.04% 0.174 265.2)
XYZ	xyz(8.0400, 5.4400, 33.8772)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1637A0 #A07F16

analogous

#167CA0 #1637A0 #3A16A0

triadic

#1637A0 #A01637 #37A016

tetradic

#1637A0 #A0167C #A07F16 #16A03A

square

#1637A0 #A0167C #A07F16 #16A03A

split-complementary

#1637A0 #A03A16 #7CA016

monochromatic

#071234 #0F256A #1637A0 #1D49D6 #4A70E6

Accessibility & contrast

On white

10.06

#1637A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#1637A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1637A0

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1637A0	#FFFFFF	#000000	##FFFFFF
##1637A0	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A3

Deuteranopia (green-blind)

#003C9E

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1637a0;
/* rgb */ color: rgb(22, 55, 160);
/* oklch */ color: oklch(39.0% 0.174 265.2);

Tailwind

colors: {
  custom: {
    50: '#6f6dbd',
    500: '#1637a0',
    950: '#000000',
  },
}

SCSS

$custom: #1637a0;
$custom-light: #6f6dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1637a0",
  "rgb": {
    "r": 22,
    "g": 55,
    "b": 160
  },
  "hsl": {
    "h": 225.652,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39042,
    "c": 0.17372,
    "h": 265.2
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#1637A0

secondary

#C8AA4A

accent

#C535F2

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1637A0

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

Preview Lab → · Contrast checker → · Palette generator →