#1631A1#1631A1

#1631A1 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.1% C 0.182 H 266.2°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#1631A1
RGB	rgb(22, 49, 161)
HSL	hsl(228, 76%, 36%)
HSV	hsv(228, 86%, 63%)
CMYK	cmyk(86.3%, 69.6%, 0%, 36.9%)
CIE-LAB	lab(26.56, 34.38, -62.64)
CIE-LCH	lch(26.56, 71.45, 298.76°)
OKLab	oklab(38.05% -0.0121 -0.1816)
OKLCH	oklch(38.05% 0.182 266.2)
XYZ	xyz(7.8600, 4.9394, 34.2504)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1631A1 #A18616

analogous

#1676A1 #1631A1 #4016A1

triadic

#1631A1 #A11631 #31A116

tetradic

#1631A1 #A11676 #A18616 #16A140

square

#1631A1 #A11676 #A18616 #16A140

split-complementary

#1631A1 #A14016 #76A116

monochromatic

#071035 #0F216B #1631A1 #1D41D7 #4B69E6

Accessibility & contrast

On white

10.56

#1631A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1631A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1631A1

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1631A1	#FFFFFF	#000000	##FFFFFF
##1631A1	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A4

Deuteranopia (green-blind)

#00389F

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1631a1;
/* rgb */ color: rgb(22, 49, 161);
/* oklch */ color: oklch(38.1% 0.182 266.2);

Tailwind

colors: {
  custom: {
    50: '#7069be',
    500: '#1631a1',
    950: '#000000',
  },
}

SCSS

$custom: #1631a1;
$custom-light: #7069be;
$custom-dark: #000000;

JSON

{
  "hex": "#1631a1",
  "rgb": {
    "r": 22,
    "g": 49,
    "b": 161
  },
  "hsl": {
    "h": 228.345,
    "s": 75.956,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38052,
    "c": 0.18199,
    "h": 266.2
  },
  "luminance": 0.0494
}

Semantic roles & 50–950 ramp

primary

#1631A1

secondary

#C8B04B

accent

#CE35F3

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1631A1

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

Preview Lab → · Contrast checker → · Palette generator →