#3155C0#3155C0

#3155C0 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.8% C 0.173 H 266.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#3155C0
RGB	rgb(49, 85, 192)
HSL	hsl(225, 59%, 47%)
HSV	hsv(225, 74%, 75%)
CMYK	cmyk(74.5%, 55.7%, 0%, 24.7%)
CIE-LAB	lab(39.50, 24.98, -59.86)
CIE-LCH	lch(39.50, 64.87, 292.65°)
OKLab	oklab(48.77% -0.012 -0.1726)
OKLCH	oklch(48.77% 0.173 266)
XYZ	xyz(14.0262, 10.9542, 51.2341)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155C0 #C09C31

analogous

#319DC0 #3155C0 #5431C0

triadic

#3155C0 #C03155 #55C031

tetradic

#3155C0 #C0319D #C09C31 #31C054

square

#3155C0 #C0319D #C09C31 #31C054

split-complementary

#3155C0 #C05431 #9DC031

monochromatic

#182A5E #253F8F #3155C0 #5978D5 #8AA0E1

Accessibility & contrast

On white

6.58

#3155C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3155C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155C0

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155C0	#FFFFFF	#000000	##FFFFFF
##3155C0	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C4

Deuteranopia (green-blind)

#0057BE

Tritanopia (blue-blind)

#006F82

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3155c0;
/* rgb */ color: rgb(49, 85, 192);
/* oklch */ color: oklch(48.8% 0.173 266.0);

Tailwind

colors: {
  custom: {
    50: '#7d84d4',
    500: '#3155c0',
    950: '#000000',
  },
}

SCSS

$custom: #3155c0;
$custom-light: #7d84d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3155c0",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 192
  },
  "hsl": {
    "h": 224.895,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48765,
    "c": 0.17301,
    "h": 266
  },
  "luminance": 0.10956
}

Semantic roles & 50–950 ramp

primary

#3155C0

secondary

#CBB982

accent

#BB45E3

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3155C0

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

Preview Lab → · Contrast checker → · Palette generator →