#3557CA#3557CA

#3557CA is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.1% C 0.183 H 267.0°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#3557CA
RGB	rgb(53, 87, 202)
HSL	hsl(226, 58%, 50%)
HSV	hsv(226, 74%, 79%)
CMYK	cmyk(73.8%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(40.95, 27.87, -63.30)
CIE-LCH	lch(40.95, 69.17, 293.77°)
OKLab	oklab(50.14% -0.0096 -0.1826)
OKLCH	oklch(50.14% 0.183 267)
XYZ	xyz(15.5333, 11.8359, 57.3316)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3557CA #CAA835

analogous

#35A1CA #3557CA #5E35CA

triadic

#3557CA #CA3557 #57CA35

tetradic

#3557CA #CA35A1 #CAA835 #35CA5E

square

#3557CA #CA35A1 #CAA835 #35CA5E

split-complementary

#3557CA #CA5E35 #A1CA35

monochromatic

#1C2D69 #28429A #3557CA #657FD7 #96A8E3

Accessibility & contrast

On white

6.24

#3557CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#3557CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3557CA

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3557CA	#FFFFFF	#000000	##FFFFFF
##3557CA	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#005AC8

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3557ca;
/* rgb */ color: rgb(53, 87, 202);
/* oklch */ color: oklch(50.1% 0.183 267.0);

Tailwind

colors: {
  custom: {
    50: '#8186db',
    500: '#3557ca',
    950: '#000000',
  },
}

SCSS

$custom: #3557ca;
$custom-light: #8186db;
$custom-dark: #000000;

JSON

{
  "hex": "#3557ca",
  "rgb": {
    "r": 53,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 226.309,
    "s": 58.431,
    "l": 50
  },
  "oklch": {
    "l": 0.50139,
    "c": 0.18285,
    "h": 267
  },
  "luminance": 0.11838
}

Semantic roles & 50–950 ramp

primary

#3557CA

secondary

#CFC08C

accent

#BE46E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3557CA

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

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