#4051BE#4051BE

#4051BE is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.6% C 0.171 H 271.8°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#4051BE
RGB	rgb(64, 81, 190)
HSL	hsl(232, 50%, 50%)
HSV	hsv(232, 66%, 75%)
CMYK	cmyk(66.3%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(39.06, 28.92, -59.39)
CIE-LCH	lch(39.06, 66.06, 295.96°)
OKLab	oklab(48.58% 0.0053 -0.1709)
OKLCH	oklch(48.58% 0.171 271.8)
XYZ	xyz(14.3479, 10.6912, 50.0127)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051BE #BEAD40

analogous

#4090BE #4051BE #6E40BE

triadic

#4051BE #BE4051 #51BE40

tetradic

#4051BE #BE4090 #BEAD40 #40BE6E

square

#4051BE #BE4090 #BEAD40 #40BE6E

split-complementary

#4051BE #BE6E40 #90BE40

monochromatic

#212A62 #313D90 #4051BE #6D7ACE #9BA4DD

Accessibility & contrast

On white

6.69

#4051BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4051BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051BE

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051BE	#FFFFFF	#000000	##FFFFFF
##4051BE	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C2

Deuteranopia (green-blind)

#0056BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4051be;
/* rgb */ color: rgb(64, 81, 190);
/* oklch */ color: oklch(48.6% 0.171 271.8);

Tailwind

colors: {
  custom: {
    50: '#8381d2',
    500: '#4051be',
    950: '#000000',
  },
}

SCSS

$custom: #4051be;
$custom-light: #8381d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4051be",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 231.905,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48584,
    "c": 0.17101,
    "h": 271.8
  },
  "luminance": 0.10693
}

Semantic roles & 50–950 ramp

primary

#4051BE

secondary

#C9C290

accent

#C64FD9

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #4051BE

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

Preview Lab → · Contrast checker → · Palette generator →