#3557C7#3557C7

#3557C7 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.9% C 0.179 H 266.9°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#3557C7
RGB	rgb(53, 87, 199)
HSL	hsl(226, 58%, 49%)
HSV	hsv(226, 73%, 78%)
CMYK	cmyk(73.4%, 56.3%, 0%, 22%)
CIE-LAB	lab(40.73, 26.77, -61.94)
CIE-LCH	lch(40.73, 67.47, 293.38°)
OKLab	oklab(49.9% -0.0098 -0.1786)
OKLCH	oklch(49.9% 0.179 266.9)
XYZ	xyz(15.1816, 11.6952, 55.4790)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3557C7 #C7A535

analogous

#35A0C7 #3557C7 #5C35C7

triadic

#3557C7 #C73557 #57C735

tetradic

#3557C7 #C735A0 #C7A535 #35C75C

square

#3557C7 #C735A0 #C7A535 #35C75C

split-complementary

#3557C7 #C75C35 #A0C735

monochromatic

#1B2D66 #284297 #3557C7 #647ED6 #94A6E2

Accessibility & contrast

On white

6.29

#3557C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3557C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3557C7

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3557C7	#FFFFFF	#000000	##FFFFFF
##3557C7	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CB

Deuteranopia (green-blind)

#005AC5

Tritanopia (blue-blind)

#007386

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3557c7;
/* rgb */ color: rgb(53, 87, 199);
/* oklch */ color: oklch(49.9% 0.179 266.9);

Tailwind

colors: {
  custom: {
    50: '#8085d9',
    500: '#3557c7',
    950: '#000000',
  },
}

SCSS

$custom: #3557c7;
$custom-light: #8085d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3557c7",
  "rgb": {
    "r": 53,
    "g": 87,
    "b": 199
  },
  "hsl": {
    "h": 226.027,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49898,
    "c": 0.17885,
    "h": 266.9
  },
  "luminance": 0.11697
}

Semantic roles & 50–950 ramp

primary

#3557C7

secondary

#CEBE8A

accent

#BD47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3557C7

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

Preview Lab → · Contrast checker → · Palette generator →