#3155AD#3155AD

#3155AD is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.147 H 264.6°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3155AD
RGB	rgb(49, 85, 173)
HSL	hsl(223, 56%, 44%)
HSV	hsv(223, 72%, 68%)
CMYK	cmyk(71.7%, 50.9%, 0%, 32.2%)
CIE-LAB	lab(38.14, 17.86, -50.91)
CIE-LCH	lch(38.14, 53.95, 289.33°)
OKLab	oklab(47.3% -0.0137 -0.1462)
OKLCH	oklch(47.3% 0.147 264.6)
XYZ	xyz(12.0553, 10.1658, 40.8539)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155AD #AD8931

analogous

#3193AD #3155AD #4B31AD

triadic

#3155AD #AD3155 #55AD31

tetradic

#3155AD #AD3193 #AD8931 #31AD4B

square

#3155AD #AD3193 #AD8931 #31AD4B

split-complementary

#3155AD #AD4B31 #93AD31

monochromatic

#16264E #233E7D #3155AD #4E73CD #7E99DA

Accessibility & contrast

On white

6.92

#3155AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3155AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155AD

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155AD	#FFFFFF	#000000	##FFFFFF
##3155AD	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2060B0

Deuteranopia (green-blind)

#0054AB

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3155ad;
/* rgb */ color: rgb(49, 85, 173);
/* oklch */ color: oklch(47.3% 0.147 264.6);

Tailwind

colors: {
  custom: {
    50: '#7984c6',
    500: '#3155ad',
    950: '#000000',
  },
}

SCSS

$custom: #3155ad;
$custom-light: #7984c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3155ad",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 173
  },
  "hsl": {
    "h": 222.581,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47299,
    "c": 0.14689,
    "h": 264.6
  },
  "luminance": 0.10167
}

Semantic roles & 50–950 ramp

primary

#3155AD

secondary

#C3AD77

accent

#B349DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3155AD

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

Preview Lab → · Contrast checker → · Palette generator →