#4153BC#4153BC

#4153BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.9% C 0.165 H 271.6°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#4153BC
RGB	rgb(65, 83, 188)
HSL	hsl(231, 49%, 50%)
HSV	hsv(231, 65%, 74%)
CMYK	cmyk(65.4%, 55.9%, 0%, 26.3%)
CIE-LAB	lab(39.48, 27.09, -57.53)
CIE-LCH	lch(39.48, 63.59, 295.21°)
OKLab	oklab(48.87% 0.0045 -0.1654)
OKLCH	oklch(48.87% 0.165 271.6)
XYZ	xyz(14.3473, 10.9399, 48.9227)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4153BC #BCAA41

analogous

#4190BC #4153BC #6D41BC

triadic

#4153BC #BC4153 #53BC41

tetradic

#4153BC #BC4190 #BCAA41 #41BC6D

square

#4153BC #BC4190 #BCAA41 #41BC6D

split-complementary

#4153BC #BC6D41 #90BC41

monochromatic

#222B61 #313F8F #4153BC #6E7BCD #9BA5DC

Accessibility & contrast

On white

6.59

#4153BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#4153BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4153BC

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4153BC	#FFFFFF	#000000	##FFFFFF
##4153BC	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0058BA

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4153bc;
/* rgb */ color: rgb(65, 83, 188);
/* oklch */ color: oklch(48.9% 0.165 271.6);

Tailwind

colors: {
  custom: {
    50: '#8383d1',
    500: '#4153bc',
    950: '#000000',
  },
}

SCSS

$custom: #4153bc;
$custom-light: #8383d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4153bc",
  "rgb": {
    "r": 65,
    "g": 83,
    "b": 188
  },
  "hsl": {
    "h": 231.22,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48869,
    "c": 0.16548,
    "h": 271.6
  },
  "luminance": 0.10941
}

Semantic roles & 50–950 ramp

primary

#4153BC

secondary

#C9C090

accent

#C450D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4153BC

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

Preview Lab → · Contrast checker → · Palette generator →