#3553CE#3553CE

#3553CE is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.7% C 0.193 H 268.0°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#3553CE
RGB	rgb(53, 83, 206)
HSL	hsl(228, 61%, 51%)
HSV	hsv(228, 74%, 81%)
CMYK	cmyk(74.3%, 59.7%, 0%, 19.2%)
CIE-LAB	lab(40.24, 31.90, -66.77)
CIE-LCH	lch(40.24, 74.00, 295.54°)
OKLab	oklab(49.71% -0.0067 -0.1928)
OKLCH	oklch(49.71% 0.193 268)
XYZ	xyz(15.6982, 11.3979, 59.7532)
Luminance	0.1140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553CE #CEB035

analogous

#35A0CE #3553CE #6335CE

triadic

#3553CE #CE3553 #53CE35

tetradic

#3553CE #CE35A0 #CEB035 #35CE63

square

#3553CE #CE35A0 #CEB035 #35CE63

split-complementary

#3553CE #CE6335 #A0CE35

monochromatic

#1B2B6E #273E9F #3553CE #667DDA #98A7E6

Accessibility & contrast

On white

6.40

#3553CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3553CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553CE

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553CE	#FFFFFF	#000000	##FFFFFF
##3553CE	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D2

Deuteranopia (green-blind)

#0058CC

Tritanopia (blue-blind)

#007288

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3553ce;
/* rgb */ color: rgb(53, 83, 206);
/* oklch */ color: oklch(49.7% 0.193 268.0);

Tailwind

colors: {
  custom: {
    50: '#8283de',
    500: '#3553ce',
    950: '#000000',
  },
}

SCSS

$custom: #3553ce;
$custom-light: #8283de;
$custom-dark: #000000;

JSON

{
  "hex": "#3553ce",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 206
  },
  "hsl": {
    "h": 228.235,
    "s": 60.956,
    "l": 50.784
  },
  "oklch": {
    "l": 0.49705,
    "c": 0.19296,
    "h": 268
  },
  "luminance": 0.114
}

Semantic roles & 50–950 ramp

primary

#3553CE

secondary

#D1C48D

accent

#C544E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3553CE

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

Preview Lab → · Contrast checker → · Palette generator →