#3151BE#3151BE

#3151BE is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.8% C 0.175 H 267.0°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3151BE
RGB	rgb(49, 81, 190)
HSL	hsl(226, 59%, 47%)
HSV	hsv(226, 74%, 75%)
CMYK	cmyk(74.2%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(38.29, 26.85, -60.66)
CIE-LCH	lch(38.29, 66.34, 293.87°)
OKLab	oklab(47.81% -0.0092 -0.175)
OKLCH	oklch(47.81% 0.175 267)
XYZ	xyz(13.5001, 10.2541, 49.9730)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3151BE #BE9E31

analogous

#3198BE #3151BE #5831BE

triadic

#3151BE #BE3151 #51BE31

tetradic

#3151BE #BE3198 #BE9E31 #31BE58

square

#3151BE #BE3198 #BE9E31 #31BE58

split-complementary

#3151BE #BE5831 #98BE31

monochromatic

#18285D #243C8D #3151BE #5874D4 #899DE1

Accessibility & contrast

On white

6.88

#3151BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3151BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3151BE

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3151BE	#FFFFFF	#000000	##FFFFFF
##3151BE	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C2

Deuteranopia (green-blind)

#0054BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3151be;
/* rgb */ color: rgb(49, 81, 190);
/* oklch */ color: oklch(47.8% 0.175 267.0);

Tailwind

colors: {
  custom: {
    50: '#7d81d2',
    500: '#3151be',
    950: '#000000',
  },
}

SCSS

$custom: #3151be;
$custom-light: #7d81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3151be",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 226.383,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47809,
    "c": 0.17524,
    "h": 267
  },
  "luminance": 0.10256
}

Semantic roles & 50–950 ramp

primary

#3151BE

secondary

#CABA80

accent

#BF46E2

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3151BE

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

Preview Lab → · Contrast checker → · Palette generator →