#1637A1#1637A1

#1637A1 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.1% C 0.175 H 265.2°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#1637A1
RGB	rgb(22, 55, 161)
HSL	hsl(226, 76%, 36%)
HSV	hsv(226, 86%, 63%)
CMYK	cmyk(86.3%, 65.8%, 0%, 36.9%)
CIE-LAB	lab(28.05, 30.42, -60.19)
CIE-LCH	lch(28.05, 67.44, 296.81°)
OKLab	oklab(39.14% -0.0146 -0.1744)
OKLCH	oklch(39.14% 0.175 265.2)
XYZ	xyz(8.1278, 5.4751, 34.3397)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1637A1 #A18016

analogous

#167CA1 #1637A1 #3A16A1

triadic

#1637A1 #A11637 #37A116

tetradic

#1637A1 #A1167C #A18016 #16A13A

square

#1637A1 #A1167C #A18016 #16A13A

split-complementary

#1637A1 #A13A16 #7CA116

monochromatic

#071235 #0F256B #1637A1 #1D49D7 #4B70E6

Accessibility & contrast

On white

10.02

#1637A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1637A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1637A1

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1637A1	#FFFFFF	#000000	##FFFFFF
##1637A1	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A4

Deuteranopia (green-blind)

#003C9F

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1637a1;
/* rgb */ color: rgb(22, 55, 161);
/* oklch */ color: oklch(39.1% 0.175 265.2);

Tailwind

colors: {
  custom: {
    50: '#706dbe',
    500: '#1637a1',
    950: '#000000',
  },
}

SCSS

$custom: #1637a1;
$custom-light: #706dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#1637a1",
  "rgb": {
    "r": 22,
    "g": 55,
    "b": 161
  },
  "hsl": {
    "h": 225.755,
    "s": 75.956,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39141,
    "c": 0.17503,
    "h": 265.2
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#1637A1

secondary

#C8AA4B

accent

#C635F3

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1637A1

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

Preview Lab → · Contrast checker → · Palette generator →