#1631A0#1631A0

#1631A0 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.9% C 0.181 H 266.2°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#1631A0
RGB	rgb(22, 49, 160)
HSL	hsl(228, 76%, 36%)
HSV	hsv(228, 86%, 63%)
CMYK	cmyk(86.3%, 69.4%, 0%, 37.3%)
CIE-LAB	lab(26.46, 34.00, -62.20)
CIE-LCH	lch(26.46, 70.88, 298.67°)
OKLab	oklab(37.95% -0.012 -0.1803)
OKLCH	oklch(37.95% 0.181 266.2)
XYZ	xyz(7.7721, 4.9043, 33.7879)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1631A0 #A08516

analogous

#1676A0 #1631A0 #4016A0

triadic

#1631A0 #A01631 #31A016

tetradic

#1631A0 #A01676 #A08516 #16A040

square

#1631A0 #A01676 #A08516 #16A040

split-complementary

#1631A0 #A04016 #76A016

monochromatic

#071034 #0F216A #1631A0 #1D41D6 #4A69E6

Accessibility & contrast

On white

10.60

#1631A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1631A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1631A0

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1631A0	#FFFFFF	#000000	##FFFFFF
##1631A0	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045A3

Deuteranopia (green-blind)

#00389E

Tritanopia (blue-blind)

#005064

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1631a0;
/* rgb */ color: rgb(22, 49, 160);
/* oklch */ color: oklch(37.9% 0.181 266.2);

Tailwind

colors: {
  custom: {
    50: '#7069bd',
    500: '#1631a0',
    950: '#000000',
  },
}

SCSS

$custom: #1631a0;
$custom-light: #7069bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1631a0",
  "rgb": {
    "r": 22,
    "g": 49,
    "b": 160
  },
  "hsl": {
    "h": 228.261,
    "s": 75.824,
    "l": 35.686
  },
  "oklch": {
    "l": 0.37948,
    "c": 0.1807,
    "h": 266.2
  },
  "luminance": 0.04905
}

Semantic roles & 50–950 ramp

primary

#1631A0

secondary

#C8AF4A

accent

#CD35F2

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1631A0

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

Preview Lab → · Contrast checker → · Palette generator →