#3154B5#3154B5

#3154B5 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.7% C 0.159 H 265.7°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#3154B5
RGB	rgb(49, 84, 181)
HSL	hsl(224, 57%, 45%)
HSV	hsv(224, 73%, 71%)
CMYK	cmyk(72.9%, 53.6%, 0%, 29%)
CIE-LAB	lab(38.43, 21.52, -55.17)
CIE-LCH	lch(38.43, 59.22, 291.31°)
OKLab	oklab(47.7% -0.012 -0.1588)
OKLCH	oklch(47.7% 0.159 265.7)
XYZ	xyz(12.7745, 10.3285, 45.0275)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3154B5 #B59231

analogous

#3196B5 #3154B5 #5031B5

triadic

#3154B5 #B53154 #54B531

tetradic

#3154B5 #B53196 #B59231 #31B550

square

#3154B5 #B53196 #B59231 #31B550

split-complementary

#3154B5 #B55031 #96B531

monochromatic

#172755 #243E85 #3154B5 #5374D0 #839BDD

Accessibility & contrast

On white

6.85

#3154B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3154B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3154B5

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3154B5	#FFFFFF	#000000	##FFFFFF
##3154B5	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B61B8

Deuteranopia (green-blind)

#0055B3

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3154b5;
/* rgb */ color: rgb(49, 84, 181);
/* oklch */ color: oklch(47.7% 0.159 265.7);

Tailwind

colors: {
  custom: {
    50: '#7b83cc',
    500: '#3154b5',
    950: '#000000',
  },
}

SCSS

$custom: #3154b5;
$custom-light: #7b83cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3154b5",
  "rgb": {
    "r": 49,
    "g": 84,
    "b": 181
  },
  "hsl": {
    "h": 224.091,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.47696,
    "c": 0.15926,
    "h": 265.7
  },
  "luminance": 0.1033
}

Semantic roles & 50–950 ramp

primary

#3154B5

secondary

#C7B37B

accent

#B847E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3154B5

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

Preview Lab → · Contrast checker → · Palette generator →