#1635B4#1635B4

#1635B4 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 40.7% C 0.202 H 265.8°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#1635B4
RGB	rgb(22, 53, 180)
HSL	hsl(228, 78%, 40%)
HSV	hsv(228, 88%, 71%)
CMYK	cmyk(87.8%, 70.6%, 0%, 29.4%)
CIE-LAB	lab(29.44, 38.91, -69.31)
CIE-LCH	lch(29.44, 79.48, 299.31°)
OKLab	oklab(40.72% -0.0148 -0.201)
OKLCH	oklch(40.72% 0.202 265.8)
XYZ	xyz(9.8393, 6.0108, 43.8128)
Luminance	0.0601 (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

#1635B4 #B49516

analogous

#1684B4 #1635B4 #4616B4

triadic

#1635B4 #B41635 #35B416

tetradic

#1635B4 #B41684 #B49516 #16B446

square

#1635B4 #B41684 #B49516 #16B446

split-complementary

#1635B4 #B44616 #84B416

monochromatic

#091547 #0F257D #1635B4 #2349E4 #5A76EB

Accessibility & contrast

On white

9.54

#1635B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#1635B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1635B4

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1635B4	#FFFFFF	#000000	##FFFFFF
##1635B4	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB8

Deuteranopia (green-blind)

#003EB2

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1635b4;
/* rgb */ color: rgb(22, 53, 180);
/* oklch */ color: oklch(40.7% 0.202 265.8);

Tailwind

colors: {
  custom: {
    50: '#756ccc',
    500: '#1635b4',
    950: '#000000',
  },
}

SCSS

$custom: #1635b4;
$custom-light: #756ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#1635b4",
  "rgb": {
    "r": 22,
    "g": 53,
    "b": 180
  },
  "hsl": {
    "h": 228.228,
    "s": 78.218,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40723,
    "c": 0.20154,
    "h": 265.8
  },
  "luminance": 0.06012
}

Semantic roles & 50–950 ramp

primary

#1635B4

secondary

#CEB758

accent

#CF33F5

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #1635B4

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

Preview Lab → · Contrast checker → · Palette generator →