#3153B3#3153B3

#3153B3 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.3% C 0.158 H 265.9°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3153B3
RGB	rgb(49, 83, 179)
HSL	hsl(224, 57%, 45%)
HSV	hsv(224, 73%, 70%)
CMYK	cmyk(72.6%, 53.6%, 0%, 29.8%)
CIE-LAB	lab(38.01, 21.43, -54.67)
CIE-LCH	lch(38.01, 58.72, 291.41°)
OKLab	oklab(47.34% -0.0114 -0.1573)
OKLCH	oklch(47.34% 0.158 265.9)
XYZ	xyz(12.4937, 10.0928, 43.9288)
Luminance	0.1009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3153B3 #B39131

analogous

#3194B3 #3153B3 #5031B3

triadic

#3153B3 #B33153 #53B331

tetradic

#3153B3 #B33194 #B39131 #31B350

square

#3153B3 #B33194 #B39131 #31B350

split-complementary

#3153B3 #B35031 #94B331

monochromatic

#172653 #243D83 #3153B3 #5273D0 #8299DD

Accessibility & contrast

On white

6.96

#3153B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3153B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3153B3

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3153B3	#FFFFFF	#000000	##FFFFFF
##3153B3	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B60B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006A7B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3153b3;
/* rgb */ color: rgb(49, 83, 179);
/* oklch */ color: oklch(47.3% 0.158 265.9);

Tailwind

colors: {
  custom: {
    50: '#7a82ca',
    500: '#3153b3',
    950: '#000000',
  },
}

SCSS

$custom: #3153b3;
$custom-light: #7a82ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3153b3",
  "rgb": {
    "r": 49,
    "g": 83,
    "b": 179
  },
  "hsl": {
    "h": 224.308,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47335,
    "c": 0.15774,
    "h": 265.9
  },
  "luminance": 0.10094
}

Semantic roles & 50–950 ramp

primary

#3153B3

secondary

#C6B27A

accent

#B848E0

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3153B3

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

Preview Lab → · Contrast checker → · Palette generator →