#3153EF#3153EF

#3153EF is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.5% C 0.236 H 267.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#3153EF
RGB	rgb(49, 83, 239)
HSL	hsl(229, 86%, 56%)
HSV	hsv(229, 79%, 94%)
CMYK	cmyk(79.5%, 65.3%, 0%, 6.3%)
CIE-LAB	lab(42.87, 43.33, -81.29)
CIE-LCH	lch(42.87, 92.12, 298.06°)
OKLab	oklab(52.45% -0.0108 -0.2354)
OKLCH	oklch(52.45% 0.236 267.4)
XYZ	xyz(19.9344, 13.0691, 83.1166)
Luminance	0.1307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3153EF #EFCD31

analogous

#31B2EF #3153EF #6E31EF

triadic

#3153EF #EF3153 #53EF31

tetradic

#3153EF #EF31B2 #EFCD31 #31EF6E

square

#3153EF #EF31B2 #EFCD31 #31EF6E

split-complementary

#3153EF #EF6E31 #B2EF31

monochromatic

#0C259A #1033D2 #3153EF #6A82F3 #A3B2F8

Accessibility & contrast

On white

5.81

#3153EF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#3153EF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3153EF

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3153EF	#FFFFFF	#000000	##FFFFFF
##3153EF	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EF4

Deuteranopia (green-blind)

#005CEC

Tritanopia (blue-blind)

#007D9A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3153ef;
/* rgb */ color: rgb(49, 83, 239);
/* oklch */ color: oklch(52.5% 0.236 267.4);

Tailwind

colors: {
  custom: {
    50: '#8883f6',
    500: '#3153ef',
    950: '#000000',
  },
}

SCSS

$custom: #3153ef;
$custom-light: #8883f6;
$custom-dark: #000000;

JSON

{
  "hex": "#3153ef",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 239
  },
  "hsl": {
    "h": 229.263,
    "s": 85.586,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52454,
    "c": 0.23567,
    "h": 267.4
  },
  "luminance": 0.13071
}

Semantic roles & 50–950 ramp

primary

#3153EF

secondary

#E5D797

accent

#D72CFC

background

#F9F8FF

surface

#F2EFFF

border

#CCCAD7

text

#0E0A17

muted

#7E7C85

Preview Lab

Preview with #3153EF

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

Preview Lab → · Contrast checker → · Palette generator →