#3155AF#3155AF

#3155AF is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.4% C 0.150 H 264.8°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3155AF
RGB	rgb(49, 85, 175)
HSL	hsl(223, 56%, 44%)
HSV	hsv(223, 72%, 69%)
CMYK	cmyk(72%, 51.4%, 0%, 31.4%)
CIE-LAB	lab(38.28, 18.61, -51.87)
CIE-LCH	lch(38.28, 55.11, 289.74°)
OKLab	oklab(47.45% -0.0135 -0.1491)
OKLCH	oklch(47.45% 0.15 264.8)
XYZ	xyz(12.2503, 10.2438, 41.8808)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155AF #AF8B31

analogous

#3194AF #3155AF #4C31AF

triadic

#3155AF #AF3155 #55AF31

tetradic

#3155AF #AF3194 #AF8B31 #31AF4C

square

#3155AF #AF3194 #AF8B31 #31AF4C

split-complementary

#3155AF #AF4C31 #94AF31

monochromatic

#16274F #243E7F #3155AF #4F74CE #7F99DB

Accessibility & contrast

On white

6.89

#3155AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3155AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155AF

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155AF	#FFFFFF	#000000	##FFFFFF
##3155AF	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)

#1D60B2

Deuteranopia (green-blind)

#0055AD

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3155af;
/* rgb */ color: rgb(49, 85, 175);
/* oklch */ color: oklch(47.4% 0.150 264.8);

Tailwind

colors: {
  custom: {
    50: '#7984c7',
    500: '#3155af',
    950: '#000000',
  },
}

SCSS

$custom: #3155af;
$custom-light: #7984c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3155af",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 175
  },
  "hsl": {
    "h": 222.857,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.47448,
    "c": 0.14969,
    "h": 264.8
  },
  "luminance": 0.10245
}

Semantic roles & 50–950 ramp

primary

#3155AF

secondary

#C4AE78

accent

#B448E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3155AF

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

Preview Lab → · Contrast checker → · Palette generator →