#1636B4#1636B4

#1636B4 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 40.9% C 0.200 H 265.7°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#1636B4
RGB	rgb(22, 54, 180)
HSL	hsl(228, 78%, 40%)
HSV	hsv(228, 88%, 71%)
CMYK	cmyk(87.8%, 70%, 0%, 29.4%)
CIE-LAB	lab(29.67, 38.28, -68.93)
CIE-LCH	lch(29.67, 78.85, 299.05°)
OKLab	oklab(40.89% -0.0151 -0.1999)
OKLCH	oklch(40.89% 0.2 265.7)
XYZ	xyz(9.8854, 6.1029, 43.8281)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.03

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1636B4 #B49416

analogous

#1685B4 #1636B4 #4516B4

triadic

#1636B4 #B41636 #36B416

tetradic

#1636B4 #B41685 #B49416 #16B445

square

#1636B4 #B41685 #B49416 #16B445

split-complementary

#1636B4 #B44516 #85B416

monochromatic

#091547 #0F267D #1636B4 #234AE4 #5A77EB

Accessibility & contrast

On white

9.46

#1636B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#1636B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1636B4

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1636B4	#FFFFFF	#000000	##FFFFFF
##1636B4	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1636b4;
/* rgb */ color: rgb(22, 54, 180);
/* oklch */ color: oklch(40.9% 0.200 265.7);

Tailwind

colors: {
  custom: {
    50: '#756dcc',
    500: '#1636b4',
    950: '#000000',
  },
}

SCSS

$custom: #1636b4;
$custom-light: #756dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#1636b4",
  "rgb": {
    "r": 22,
    "g": 54,
    "b": 180
  },
  "hsl": {
    "h": 227.848,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40891,
    "c": 0.20046,
    "h": 265.7
  },
  "luminance": 0.06104
}

Semantic roles & 50–950 ramp

primary

#1636B4

secondary

#CEB658

accent

#CD33F5

background

#F7F6FC

surface

#EEEBF9

border

#C9C6D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1636B4

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

Preview Lab → · Contrast checker → · Palette generator →