#3151C2#3151C2

#3151C2 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.1% C 0.181 H 267.1°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#3151C2
RGB	rgb(49, 81, 194)
HSL	hsl(227, 60%, 48%)
HSV	hsv(227, 75%, 76%)
CMYK	cmyk(74.7%, 58.2%, 0%, 23.9%)
CIE-LAB	lab(38.61, 28.33, -62.49)
CIE-LCH	lch(38.61, 68.61, 294.39°)
OKLab	oklab(48.14% -0.009 -0.1804)
OKLCH	oklch(48.14% 0.181 267.1)
XYZ	xyz(13.9433, 10.4314, 52.3071)
Luminance	0.1043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151C2 #C2A231

analogous

#3199C2 #3151C2 #5A31C2

triadic

#3151C2 #C23151 #51C231

tetradic

#3151C2 #C23199 #C2A231 #31C25A

square

#3151C2 #C23199 #C2A231 #31C25A

split-complementary

#3151C2 #C25A31 #99C231

monochromatic

#182860 #253D91 #3151C2 #5B76D6 #8C9FE2

Accessibility & contrast

On white

6.80

#3151C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3151C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3151C2

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151C2	#FFFFFF	#000000	##FFFFFF
##3151C2	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C6

Deuteranopia (green-blind)

#0054C0

Tritanopia (blue-blind)

#006D81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3151c2;
/* rgb */ color: rgb(49, 81, 194);
/* oklch */ color: oklch(48.1% 0.181 267.1);

Tailwind

colors: {
  custom: {
    50: '#7e81d5',
    500: '#3151c2',
    950: '#000000',
  },
}

SCSS

$custom: #3151c2;
$custom-light: #7e81d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3151c2",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 194
  },
  "hsl": {
    "h": 226.759,
    "s": 59.671,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4814,
    "c": 0.1806,
    "h": 267.1
  },
  "luminance": 0.10433
}

Semantic roles & 50–950 ramp

primary

#3151C2

secondary

#CCBC83

accent

#C045E3

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3151C2

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

Preview Lab → · Contrast checker → · Palette generator →