#1633A0#1633A0

#1633A0 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.178 H 265.9°. Best body text is #FFFFFF at 10.42:1 contrast (WCAG AA passes).

Color values

HEX	#1633A0
RGB	rgb(22, 51, 160)
HSL	hsl(227, 76%, 36%)
HSV	hsv(227, 86%, 63%)
CMYK	cmyk(86.3%, 68.1%, 0%, 37.3%)
CIE-LAB	lab(26.95, 32.69, -61.39)
CIE-LCH	lch(26.95, 69.56, 298.04°)
OKLab	oklab(38.3% -0.0128 -0.1779)
OKLCH	oklch(38.3% 0.178 265.9)
XYZ	xyz(7.8576, 5.0753, 33.8164)
Luminance	0.0508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1633A0 #A08316

analogous

#1678A0 #1633A0 #3E16A0

triadic

#1633A0 #A01633 #33A016

tetradic

#1633A0 #A01678 #A08316 #16A03E

square

#1633A0 #A01678 #A08316 #16A03E

split-complementary

#1633A0 #A03E16 #78A016

monochromatic

#071134 #0F226A #1633A0 #1D44D6 #4A6BE6

Accessibility & contrast

On white

10.42

#1633A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1633A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1633A0

10.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1633A0	#FFFFFF	#000000	##FFFFFF
##1633A0	1.00	10.42	2.02	10.42
#FFFFFF	10.42	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A3

Deuteranopia (green-blind)

#00399E

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1633a0;
/* rgb */ color: rgb(22, 51, 160);
/* oklch */ color: oklch(38.3% 0.178 265.9);

Tailwind

colors: {
  custom: {
    50: '#706abd',
    500: '#1633a0',
    950: '#000000',
  },
}

SCSS

$custom: #1633a0;
$custom-light: #706abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1633a0",
  "rgb": {
    "r": 22,
    "g": 51,
    "b": 160
  },
  "hsl": {
    "h": 227.391,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.38304,
    "c": 0.17841,
    "h": 265.9
  },
  "luminance": 0.05076
}

Semantic roles & 50–950 ramp

primary

#1633A0

secondary

#C8AD4A

accent

#CB35F2

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1633A0

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

Preview Lab → · Contrast checker → · Palette generator →