#4051BA#4051BA

#4051BA is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.3% C 0.166 H 271.8°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#4051BA
RGB	rgb(64, 81, 186)
HSL	hsl(232, 49%, 49%)
HSV	hsv(232, 66%, 73%)
CMYK	cmyk(65.6%, 56.5%, 0%, 27.1%)
CIE-LAB	lab(38.76, 27.51, -57.53)
CIE-LCH	lch(38.76, 63.77, 295.55°)
OKLab	oklab(48.27% 0.0051 -0.1655)
OKLCH	oklch(48.27% 0.166 271.8)
XYZ	xyz(13.9167, 10.5188, 47.7418)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4051BA #BAA940

analogous

#408EBA #4051BA #6C40BA

triadic

#4051BA #BA4051 #51BA40

tetradic

#4051BA #BA408E #BAA940 #40BA6C

square

#4051BA #BA408E #BAA940 #40BA6C

split-complementary

#4051BA #BA6C40 #8EBA40

monochromatic

#21295F #303D8C #4051BA #6B79CC #99A2DC

Accessibility & contrast

On white

6.77

#4051BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#4051BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4051BA

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4051BA	#FFFFFF	#000000	##FFFFFF
##4051BA	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BE

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4051ba;
/* rgb */ color: rgb(64, 81, 186);
/* oklch */ color: oklch(48.3% 0.166 271.8);

Tailwind

colors: {
  custom: {
    50: '#8281cf',
    500: '#4051ba',
    950: '#000000',
  },
}

SCSS

$custom: #4051ba;
$custom-light: #8281cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4051ba",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 186
  },
  "hsl": {
    "h": 231.639,
    "s": 48.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.48268,
    "c": 0.16555,
    "h": 271.8
  },
  "luminance": 0.1052
}

Semantic roles & 50–950 ramp

primary

#4051BA

secondary

#C8C08E

accent

#C54FD8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4051BA

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

Preview Lab → · Contrast checker → · Palette generator →