#4054BB#4054BB

#4054BB is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.9% C 0.163 H 270.9°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#4054BB
RGB	rgb(64, 84, 187)
HSL	hsl(230, 49%, 49%)
HSV	hsv(230, 66%, 73%)
CMYK	cmyk(65.8%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(39.61, 25.93, -56.74)
CIE-LCH	lch(39.61, 62.38, 294.56°)
OKLab	oklab(48.93% 0.0025 -0.1631)
OKLCH	oklch(48.93% 0.163 270.9)
XYZ	xyz(14.2513, 11.0172, 48.3796)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4054BB #BBA740

analogous

#4092BB #4054BB #6A40BB

triadic

#4054BB #BB4054 #54BB40

tetradic

#4054BB #BB4092 #BBA740 #40BB6A

square

#4054BB #BB4092 #BBA740 #40BB6A

split-complementary

#4054BB #BB6A40 #92BB40

monochromatic

#212B60 #30408D #4054BB #6C7BCD #99A4DC

Accessibility & contrast

On white

6.56

#4054BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#4054BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4054BB

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4054BB	#FFFFFF	#000000	##FFFFFF
##4054BB	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	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: #4054bb;
/* rgb */ color: rgb(64, 84, 187);
/* oklch */ color: oklch(48.9% 0.163 270.9);

Tailwind

colors: {
  custom: {
    50: '#8283d0',
    500: '#4054bb',
    950: '#000000',
  },
}

SCSS

$custom: #4054bb;
$custom-light: #8283d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4054bb",
  "rgb": {
    "r": 64,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 230.244,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48929,
    "c": 0.16311,
    "h": 270.9
  },
  "luminance": 0.11018
}

Semantic roles & 50–950 ramp

primary

#4054BB

secondary

#C8BF8F

accent

#C24FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4054BB

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

Preview Lab → · Contrast checker → · Palette generator →