#3553D9#3553D9

#3553D9 is a mid, highly saturated blue. Relative luminance 0.120; OKLCH L 50.6% C 0.207 H 268.1°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#3553D9
RGB	rgb(53, 83, 217)
HSL	hsl(229, 68%, 53%)
HSV	hsv(229, 76%, 85%)
CMYK	cmyk(75.6%, 61.8%, 0%, 14.9%)
CIE-LAB	lab(41.14, 35.88, -71.63)
CIE-LCH	lch(41.14, 80.11, 296.60°)
OKLab	oklab(50.65% -0.0068 -0.2071)
OKLCH	oklch(50.65% 0.207 268.1)
XYZ	xyz(17.0815, 11.9513, 67.0388)
Luminance	0.1195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553D9 #D9BB35

analogous

#35A5D9 #3553D9 #6935D9

triadic

#3553D9 #D93553 #53D935

tetradic

#3553D9 #D935A5 #D9BB35 #35D969

square

#3553D9 #D935A5 #D9BB35 #35D969

split-complementary

#3553D9 #D96935 #A5D935

monochromatic

#172A7C #213BB0 #3553D9 #697FE3 #9CABEC

Accessibility & contrast

On white

6.19

#3553D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3553D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553D9

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553D9	#FFFFFF	#000000	##FFFFFF
##3553D9	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DD

Deuteranopia (green-blind)

#0059D6

Tritanopia (blue-blind)

#00768E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3553d9;
/* rgb */ color: rgb(53, 83, 217);
/* oklch */ color: oklch(50.6% 0.207 268.1);

Tailwind

colors: {
  custom: {
    50: '#8483e6',
    500: '#3553d9',
    950: '#000000',
  },
}

SCSS

$custom: #3553d9;
$custom-light: #8483e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3553d9",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 217
  },
  "hsl": {
    "h": 229.024,
    "s": 68.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50648,
    "c": 0.20719,
    "h": 268.1
  },
  "luminance": 0.11953
}

Semantic roles & 50–950 ramp

primary

#3553D9

secondary

#D8CB91

accent

#CB3DEB

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3553D9

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

Preview Lab → · Contrast checker → · Palette generator →