#3155AC#3155AC

#3155AC is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.2% C 0.145 H 264.5°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3155AC
RGB	rgb(49, 85, 172)
HSL	hsl(222, 56%, 43%)
HSV	hsv(222, 72%, 67%)
CMYK	cmyk(71.5%, 50.6%, 0%, 32.5%)
CIE-LAB	lab(38.07, 17.49, -50.43)
CIE-LCH	lch(38.07, 53.37, 289.12°)
OKLab	oklab(47.23% -0.0138 -0.1448)
OKLCH	oklch(47.23% 0.145 264.5)
XYZ	xyz(11.9589, 10.1273, 40.3462)
Luminance	0.1013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155AC #AC8831

analogous

#3192AC #3155AC #4A31AC

triadic

#3155AC #AC3155 #55AC31

tetradic

#3155AC #AC3192 #AC8831 #31AC4A

square

#3155AC #AC3192 #AC8831 #31AC4A

split-complementary

#3155AC #AC4A31 #92AC31

monochromatic

#16264D #233D7C #3155AC #4E73CC #7D98DA

Accessibility & contrast

On white

6.94

#3155AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3155AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155AC

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155AC	#FFFFFF	#000000	##FFFFFF
##3155AC	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2260AF

Deuteranopia (green-blind)

#0054AA

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3155ac;
/* rgb */ color: rgb(49, 85, 172);
/* oklch */ color: oklch(47.2% 0.145 264.5);

Tailwind

colors: {
  custom: {
    50: '#7984c5',
    500: '#3155ac',
    950: '#000000',
  },
}

SCSS

$custom: #3155ac;
$custom-light: #7984c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3155ac",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 172
  },
  "hsl": {
    "h": 222.439,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.47225,
    "c": 0.14549,
    "h": 264.5
  },
  "luminance": 0.10129
}

Semantic roles & 50–950 ramp

primary

#3155AC

secondary

#C3AC76

accent

#B349DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3155AC

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

Preview Lab → · Contrast checker → · Palette generator →