#3155AA#3155AA

#3155AA is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.1% C 0.143 H 264.3°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#3155AA
RGB	rgb(49, 85, 170)
HSL	hsl(222, 55%, 43%)
HSV	hsv(222, 71%, 67%)
CMYK	cmyk(71.2%, 50%, 0%, 33.3%)
CIE-LAB	lab(37.93, 16.73, -49.46)
CIE-LCH	lch(37.93, 52.22, 288.69°)
OKLab	oklab(47.08% -0.0141 -0.142)
OKLCH	oklch(47.08% 0.143 264.3)
XYZ	xyz(11.7683, 10.0510, 39.3423)
Luminance	0.1005 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3155AA #AA8631

analogous

#3191AA #3155AA #4A31AA

triadic

#3155AA #AA3155 #55AA31

tetradic

#3155AA #AA3191 #AA8631 #31AA4A

square

#3155AA #AA3191 #AA8631 #31AA4A

split-complementary

#3155AA #AA4A31 #91AA31

monochromatic

#16254B #233D7A #3155AA #4D72CC #7C98D9

Accessibility & contrast

On white

6.98

#3155AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3155AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3155AA

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3155AA	#FFFFFF	#000000	##FFFFFF
##3155AA	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#245FAD

Deuteranopia (green-blind)

#0054A8

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3155aa;
/* rgb */ color: rgb(49, 85, 170);
/* oklch */ color: oklch(47.1% 0.143 264.3);

Tailwind

colors: {
  custom: {
    50: '#7884c4',
    500: '#3155aa',
    950: '#000000',
  },
}

SCSS

$custom: #3155aa;
$custom-light: #7884c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3155aa",
  "rgb": {
    "r": 49,
    "g": 85,
    "b": 170
  },
  "hsl": {
    "h": 222.149,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47078,
    "c": 0.14269,
    "h": 264.3
  },
  "luminance": 0.10052
}

Semantic roles & 50–950 ramp

primary

#3155AA

secondary

#C2AB75

accent

#B249DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3155AA

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

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