#3154D3#3154D3

#3154D3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.199 H 266.9°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#3154D3
RGB	rgb(49, 84, 211)
HSL	hsl(227, 65%, 51%)
HSV	hsv(227, 77%, 83%)
CMYK	cmyk(76.8%, 60.2%, 0%, 17.3%)
CIE-LAB	lab(40.73, 32.66, -68.87)
CIE-LCH	lch(40.73, 76.22, 295.37°)
OKLab	oklab(50.14% -0.0107 -0.199)
OKLCH	oklch(50.14% 0.199 266.9)
XYZ	xyz(16.1907, 11.6949, 63.0194)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3154D3 #D3B031

analogous

#31A5D3 #3154D3 #5F31D3

triadic

#3154D3 #D33154 #54D331

tetradic

#3154D3 #D331A5 #D3B031 #31D35F

square

#3154D3 #D331A5 #D3B031 #31D35F

split-complementary

#3154D3 #D35F31 #A5D331

monochromatic

#182B71 #233FA4 #3154D3 #637EDE #96A8E9

Accessibility & contrast

On white

6.29

#3154D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3154D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3154D3

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3154D3	#FFFFFF	#000000	##FFFFFF
##3154D3	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D7

Deuteranopia (green-blind)

#0059D1

Tritanopia (blue-blind)

#00748B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3154d3;
/* rgb */ color: rgb(49, 84, 211);
/* oklch */ color: oklch(50.1% 0.199 266.9);

Tailwind

colors: {
  custom: {
    50: '#8283e1',
    500: '#3154d3',
    950: '#000000',
  },
}

SCSS

$custom: #3154d3;
$custom-light: #8283e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3154d3",
  "rgb": {
    "r": 49,
    "g": 84,
    "b": 211
  },
  "hsl": {
    "h": 227.037,
    "s": 64.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50144,
    "c": 0.19934,
    "h": 266.9
  },
  "luminance": 0.11697
}

Semantic roles & 50–950 ramp

primary

#3154D3

secondary

#D4C48C

accent

#C440E8

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3154D3

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

Preview Lab → · Contrast checker → · Palette generator →