#3156AB#3156AB

#3156AB is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.4% C 0.143 H 264.0°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3156AB
RGB	rgb(49, 86, 171)
HSL	hsl(222, 55%, 43%)
HSV	hsv(222, 71%, 67%)
CMYK	cmyk(71.3%, 49.7%, 0%, 32.9%)
CIE-LAB	lab(38.28, 16.45, -49.49)
CIE-LCH	lch(38.28, 52.15, 288.39°)
OKLab	oklab(47.37% -0.0148 -0.1421)
OKLCH	oklch(47.37% 0.143 264)
XYZ	xyz(11.9425, 10.2476, 39.8688)
Luminance	0.1025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3156AB #AB8631

analogous

#3193AB #3156AB #4931AB

triadic

#3156AB #AB3156 #56AB31

tetradic

#3156AB #AB3193 #AB8631 #31AB49

square

#3156AB #AB3193 #AB8631 #31AB49

split-complementary

#3156AB #AB4931 #93AB31

monochromatic

#16264C #233E7B #3156AB #4D74CC #7D99DA

Accessibility & contrast

On white

6.89

#3156AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3156AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3156AB

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3156AB	#FFFFFF	#000000	##FFFFFF
##3156AB	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)

#2660AE

Deuteranopia (green-blind)

#0055A9

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3156ab;
/* rgb */ color: rgb(49, 86, 171);
/* oklch */ color: oklch(47.4% 0.143 264.0);

Tailwind

colors: {
  custom: {
    50: '#7985c5',
    500: '#3156ab',
    950: '#000000',
  },
}

SCSS

$custom: #3156ab;
$custom-light: #7985c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3156ab",
  "rgb": {
    "r": 49,
    "g": 86,
    "b": 171
  },
  "hsl": {
    "h": 221.803,
    "s": 55.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.47366,
    "c": 0.14283,
    "h": 264
  },
  "luminance": 0.10249
}

Semantic roles & 50–950 ramp

primary

#3156AB

secondary

#C2AB75

accent

#B149DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3156AB

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

Preview Lab → · Contrast checker → · Palette generator →