#4154BB#4154BB

#4154BB is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.0% C 0.163 H 271.2°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#4154BB
RGB	rgb(65, 84, 187)
HSL	hsl(231, 48%, 49%)
HSV	hsv(231, 65%, 73%)
CMYK	cmyk(65.2%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(39.67, 26.10, -56.64)
CIE-LCH	lch(39.67, 62.36, 294.74°)
OKLab	oklab(48.99% 0.0035 -0.1628)
OKLCH	oklch(48.99% 0.163 271.2)
XYZ	xyz(14.3169, 11.0510, 48.3827)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4154BB #BBA841

analogous

#4191BB #4154BB #6B41BB

triadic

#4154BB #BB4154 #54BB41

tetradic

#4154BB #BB4191 #BBA841 #41BB6B

square

#4154BB #BB4191 #BBA841 #41BB6B

split-complementary

#4154BB #BB6B41 #91BB41

monochromatic

#212B60 #31408E #4154BB #6D7CCC #9AA5DC

Accessibility & contrast

On white

6.54

#4154BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#4154BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4154BB

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4154BB	#FFFFFF	#000000	##FFFFFF
##4154BB	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#0058B9

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4154bb;
/* rgb */ color: rgb(65, 84, 187);
/* oklch */ color: oklch(49.0% 0.163 271.2);

Tailwind

colors: {
  custom: {
    50: '#8383d0',
    500: '#4154bb',
    950: '#000000',
  },
}

SCSS

$custom: #4154bb;
$custom-light: #8383d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4154bb",
  "rgb": {
    "r": 65,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 230.656,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48987,
    "c": 0.16283,
    "h": 271.2
  },
  "luminance": 0.11052
}

Semantic roles & 50–950 ramp

primary

#4154BB

secondary

#C8BF90

accent

#C350D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4154BB

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

Preview Lab → · Contrast checker → · Palette generator →