#4052BC#4052BC

#4052BC is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.6% C 0.167 H 271.5°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#4052BC
RGB	rgb(64, 82, 188)
HSL	hsl(231, 49%, 49%)
HSV	hsv(231, 66%, 74%)
CMYK	cmyk(66%, 56.4%, 0%, 26.3%)
CIE-LAB	lab(39.16, 27.57, -58.05)
CIE-LCH	lch(39.16, 64.26, 295.41°)
OKLab	oklab(48.62% 0.0043 -0.167)
OKLCH	oklch(48.62% 0.167 271.5)
XYZ	xyz(14.2057, 10.7541, 48.8943)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4052BC #BCAA40

analogous

#4090BC #4052BC #6C40BC

triadic

#4052BC #BC4052 #52BC40

tetradic

#4052BC #BC4090 #BCAA40 #40BC6C

square

#4052BC #BC4090 #BCAA40 #40BC6C

split-complementary

#4052BC #BC6C40 #90BC40

monochromatic

#212A61 #303E8E #4052BC #6C7ACD #9AA4DD

Accessibility & contrast

On white

6.66

#4052BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#4052BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4052BC

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4052BC	#FFFFFF	#000000	##FFFFFF
##4052BC	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4052bc;
/* rgb */ color: rgb(64, 82, 188);
/* oklch */ color: oklch(48.6% 0.167 271.5);

Tailwind

colors: {
  custom: {
    50: '#8382d1',
    500: '#4052bc',
    950: '#000000',
  },
}

SCSS

$custom: #4052bc;
$custom-light: #8382d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4052bc",
  "rgb": {
    "r": 64,
    "g": 82,
    "b": 188
  },
  "hsl": {
    "h": 231.29,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48618,
    "c": 0.16703,
    "h": 271.5
  },
  "luminance": 0.10755
}

Semantic roles & 50–950 ramp

primary

#4052BC

secondary

#C9C08F

accent

#C54FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4052BC

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

Preview Lab → · Contrast checker → · Palette generator →