#1641B4#1641B4

#1641B4 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.188 H 264.1°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1641B4
RGB	rgb(22, 65, 180)
HSL	hsl(224, 78%, 40%)
HSV	hsv(224, 88%, 71%)
CMYK	cmyk(87.8%, 63.9%, 0%, 29.4%)
CIE-LAB	lab(32.36, 31.14, -64.51)
CIE-LCH	lch(32.36, 71.63, 295.77°)
OKLab	oklab(42.86% -0.0193 -0.1869)
OKLCH	oklch(42.86% 0.188 264.1)
XYZ	xyz(10.4565, 7.2451, 44.0185)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1641B4 #B48916

analogous

#1690B4 #1641B4 #3A16B4

triadic

#1641B4 #B41641 #41B416

tetradic

#1641B4 #B41690 #B48916 #16B43A

square

#1641B4 #B41690 #B48916 #16B43A

split-complementary

#1641B4 #B43A16 #90B416

monochromatic

#091A47 #0F2D7D #1641B4 #2358E4 #5A81EB

Accessibility & contrast

On white

8.57

#1641B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1641B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1641B4

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1641B4	#FFFFFF	#000000	##FFFFFF
##1641B4	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1641b4;
/* rgb */ color: rgb(22, 65, 180);
/* oklch */ color: oklch(42.9% 0.188 264.1);

Tailwind

colors: {
  custom: {
    50: '#7475cb',
    500: '#1641b4',
    950: '#000000',
  },
}

SCSS

$custom: #1641b4;
$custom-light: #7475cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1641b4",
  "rgb": {
    "r": 22,
    "g": 65,
    "b": 180
  },
  "hsl": {
    "h": 223.671,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.42862,
    "c": 0.18792,
    "h": 264.1
  },
  "luminance": 0.07246
}

Semantic roles & 50–950 ramp

primary

#1641B4

secondary

#CEAE58

accent

#C033F5

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #1641B4

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

Preview Lab → · Contrast checker → · Palette generator →