#3155CA#3155CA

#3155CA is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.6% C 0.186 H 266.4°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#3155CA
RGB	rgb(49, 85, 202)
HSL	hsl(226, 61%, 49%)
HSV	hsv(226, 76%, 79%)
CMYK	cmyk(75.7%, 57.9%, 0%, 20.8%)
CIE-LAB	lab(40.27, 28.70, -64.43)
CIE-LCH	lch(40.27, 70.53, 294.01°)
OKLab	oklab(49.58% -0.0116 -0.186)
OKLCH	oklch(49.58% 0.186 266.4)
XYZ	xyz(15.1721, 11.4125, 57.2689)
Luminance	0.1141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155CA #CAA631

analogous

#31A2CA #3155CA #5931CA

triadic

#3155CA #CA3155 #55CA31

tetradic

#3155CA #CA31A2 #CAA631 #31CA59

square

#3155CA #CA31A2 #CAA631 #31CA59

split-complementary

#3155CA #CA5931 #A2CA31

monochromatic

#192C67 #254099 #3155CA #607CD8 #91A5E4

Accessibility & contrast

On white

6.40

#3155CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3155CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155CA

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155CA	#FFFFFF	#000000	##FFFFFF
##3155CA	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)

#0066CE

Deuteranopia (green-blind)

#0058C8

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3155ca;
/* rgb */ color: rgb(49, 85, 202);
/* oklch */ color: oklch(49.6% 0.186 266.4);

Tailwind

colors: {
  custom: {
    50: '#7f84db',
    500: '#3155ca',
    950: '#000000',
  },
}

SCSS

$custom: #3155ca;
$custom-light: #7f84db;
$custom-dark: #000000;

JSON

{
  "hex": "#3155ca",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 202
  },
  "hsl": {
    "h": 225.882,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49578,
    "c": 0.18637,
    "h": 266.4
  },
  "luminance": 0.11414
}

Semantic roles & 50–950 ramp

primary

#3155CA

secondary

#CFBE88

accent

#BE44E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3155CA

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

Preview Lab → · Contrast checker → · Palette generator →