#1639A0#1639A0

#1639A0 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.4% C 0.171 H 264.8°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#1639A0
RGB	rgb(22, 57, 160)
HSL	hsl(225, 76%, 36%)
HSV	hsv(225, 86%, 63%)
CMYK	cmyk(86.3%, 64.4%, 0%, 37.3%)
CIE-LAB	lab(28.47, 28.69, -58.89)
CIE-LCH	lch(28.47, 65.51, 295.97°)
OKLab	oklab(39.42% -0.0156 -0.1706)
OKLCH	oklch(39.42% 0.171 264.8)
XYZ	xyz(8.1369, 5.6339, 33.9095)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1639A0 #A07D16

analogous

#167EA0 #1639A0 #3816A0

triadic

#1639A0 #A01639 #39A016

tetradic

#1639A0 #A0167E #A07D16 #16A038

square

#1639A0 #A0167E #A07D16 #16A038

split-complementary

#1639A0 #A03816 #7EA016

monochromatic

#071334 #0F266A #1639A0 #1D4CD6 #4A72E6

Accessibility & contrast

On white

9.87

#1639A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1639A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1639A0

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1639A0	#FFFFFF	#000000	##FFFFFF
##1639A0	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA3

Deuteranopia (green-blind)

#003D9E

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1639a0;
/* rgb */ color: rgb(22, 57, 160);
/* oklch */ color: oklch(39.4% 0.171 264.8);

Tailwind

colors: {
  custom: {
    50: '#6f6fbd',
    500: '#1639a0',
    950: '#000000',
  },
}

SCSS

$custom: #1639a0;
$custom-light: #6f6fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1639a0",
  "rgb": {
    "r": 22,
    "g": 57,
    "b": 160
  },
  "hsl": {
    "h": 224.783,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39423,
    "c": 0.17131,
    "h": 264.8
  },
  "luminance": 0.05635
}

Semantic roles & 50–950 ramp

primary

#1639A0

secondary

#C8A84A

accent

#C235F2

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #1639A0

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

Preview Lab → · Contrast checker → · Palette generator →