#3153AA#3153AA

#3153AA is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.7% C 0.145 H 265.1°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#3153AA
RGB	rgb(49, 83, 170)
HSL	hsl(223, 55%, 43%)
HSV	hsv(223, 71%, 67%)
CMYK	cmyk(71.2%, 51.2%, 0%, 33.3%)
CIE-LAB	lab(37.37, 18.05, -50.37)
CIE-LCH	lch(37.37, 53.50, 289.72°)
OKLab	oklab(46.65% -0.0123 -0.1447)
OKLCH	oklch(46.65% 0.145 265.1)
XYZ	xyz(11.6130, 9.7406, 39.2905)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3153AA #AA8831

analogous

#3190AA #3153AA #4B31AA

triadic

#3153AA #AA3153 #53AA31

tetradic

#3153AA #AA3190 #AA8831 #31AA4B

square

#3153AA #AA3190 #AA8831 #31AA4B

split-complementary

#3153AA #AA4B31 #90AA31

monochromatic

#16254B #233C7A #3153AA #4D70CC #7C96D9

Accessibility & contrast

On white

7.12

#3153AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3153AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3153AA

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3153AA	#FFFFFF	#000000	##FFFFFF
##3153AA	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5EAD

Deuteranopia (green-blind)

#0053A8

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3153aa;
/* rgb */ color: rgb(49, 83, 170);
/* oklch */ color: oklch(46.7% 0.145 265.1);

Tailwind

colors: {
  custom: {
    50: '#7882c4',
    500: '#3153aa',
    950: '#000000',
  },
}

SCSS

$custom: #3153aa;
$custom-light: #7882c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3153aa",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 170
  },
  "hsl": {
    "h": 223.14,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.46651,
    "c": 0.1452,
    "h": 265.1
  },
  "luminance": 0.09742
}

Semantic roles & 50–950 ramp

primary

#3153AA

secondary

#C2AC75

accent

#B549DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3153AA

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

Preview Lab → · Contrast checker → · Palette generator →