#4051BC#4051BC

#4051BC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.168 H 271.8°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#4051BC
RGB	rgb(64, 81, 188)
HSL	hsl(232, 49%, 49%)
HSV	hsv(232, 66%, 74%)
CMYK	cmyk(66%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.91, 28.21, -58.46)
CIE-LCH	lch(38.91, 64.91, 295.76°)
OKLab	oklab(48.43% 0.0052 -0.1682)
OKLCH	oklch(48.43% 0.168 271.8)
XYZ	xyz(14.1308, 10.6044, 48.8694)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051BC #BCAB40

analogous

#408FBC #4051BC #6D40BC

triadic

#4051BC #BC4051 #51BC40

tetradic

#4051BC #BC408F #BCAB40 #40BC6D

square

#4051BC #BC408F #BCAB40 #40BC6D

split-complementary

#4051BC #BC6D40 #8FBC40

monochromatic

#212A61 #303D8E #4051BC #6C79CD #9AA3DD

Accessibility & contrast

On white

6.73

#4051BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#4051BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051BC

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051BC	#FFFFFF	#000000	##FFFFFF
##4051BC	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4051bc;
/* rgb */ color: rgb(64, 81, 188);
/* oklch */ color: oklch(48.4% 0.168 271.8);

Tailwind

colors: {
  custom: {
    50: '#8381d1',
    500: '#4051bc',
    950: '#000000',
  },
}

SCSS

$custom: #4051bc;
$custom-light: #8381d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4051bc",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 231.774,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48426,
    "c": 0.16829,
    "h": 271.8
  },
  "luminance": 0.10606
}

Semantic roles & 50–950 ramp

primary

#4051BC

secondary

#C9C18F

accent

#C64FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4051BC

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

Preview Lab → · Contrast checker → · Palette generator →