#3154B3#3154B3

#3154B3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.5% C 0.156 H 265.5°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3154B3
RGB	rgb(49, 84, 179)
HSL	hsl(224, 57%, 45%)
HSV	hsv(224, 73%, 70%)
CMYK	cmyk(72.6%, 53.1%, 0%, 29.8%)
CIE-LAB	lab(38.28, 20.77, -54.22)
CIE-LCH	lch(38.28, 58.07, 290.96°)
OKLab	oklab(47.54% -0.0122 -0.156)
OKLCH	oklch(47.54% 0.156 265.5)
XYZ	xyz(12.5708, 10.2470, 43.9544)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3154B3 #B39031

analogous

#3195B3 #3154B3 #4F31B3

triadic

#3154B3 #B33154 #54B331

tetradic

#3154B3 #B33195 #B39031 #31B34F

square

#3154B3 #B33195 #B39031 #31B34F

split-complementary

#3154B3 #B34F31 #95B331

monochromatic

#172753 #243D83 #3154B3 #5274D0 #829ADD

Accessibility & contrast

On white

6.89

#3154B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3154B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3154B3

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3154B3	#FFFFFF	#000000	##FFFFFF
##3154B3	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1160B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3154b3;
/* rgb */ color: rgb(49, 84, 179);
/* oklch */ color: oklch(47.5% 0.156 265.5);

Tailwind

colors: {
  custom: {
    50: '#7a83ca',
    500: '#3154b3',
    950: '#000000',
  },
}

SCSS

$custom: #3154b3;
$custom-light: #7a83ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3154b3",
  "rgb": {
    "r": 49,
    "g": 84,
    "b": 179
  },
  "hsl": {
    "h": 223.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47542,
    "c": 0.15649,
    "h": 265.5
  },
  "luminance": 0.10248
}

Semantic roles & 50–950 ramp

primary

#3154B3

secondary

#C6B17A

accent

#B748E0

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3154B3

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

Preview Lab → · Contrast checker → · Palette generator →