#3155BD#3155BD

#3155BD is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.169 H 265.9°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3155BD
RGB	rgb(49, 85, 189)
HSL	hsl(225, 59%, 47%)
HSV	hsv(225, 74%, 74%)
CMYK	cmyk(74.1%, 55%, 0%, 25.9%)
CIE-LAB	lab(39.28, 23.86, -58.48)
CIE-LCH	lch(39.28, 63.16, 292.20°)
OKLab	oklab(48.53% -0.0122 -0.1685)
OKLCH	oklch(48.53% 0.169 265.9)
XYZ	xyz(13.6972, 10.8226, 49.5013)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155BD #BD9931

analogous

#319BBD #3155BD #5331BD

triadic

#3155BD #BD3155 #55BD31

tetradic

#3155BD #BD319B #BD9931 #31BD53

square

#3155BD #BD319B #BD9931 #31BD53

split-complementary

#3155BD #BD5331 #9BBD31

monochromatic

#18295C #243F8C #3155BD #5877D4 #889FE0

Accessibility & contrast

On white

6.64

#3155BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3155BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155BD

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155BD	#FFFFFF	#000000	##FFFFFF
##3155BD	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3155bd;
/* rgb */ color: rgb(49, 85, 189);
/* oklch */ color: oklch(48.5% 0.169 265.9);

Tailwind

colors: {
  custom: {
    50: '#7c84d2',
    500: '#3155bd',
    950: '#000000',
  },
}

SCSS

$custom: #3155bd;
$custom-light: #7c84d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3155bd",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 189
  },
  "hsl": {
    "h": 224.571,
    "s": 58.824,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48526,
    "c": 0.16895,
    "h": 265.9
  },
  "luminance": 0.10824
}

Semantic roles & 50–950 ramp

primary

#3155BD

secondary

#CAB780

accent

#BA46E2

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3155BD

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

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