#4065B3#4065B3

#4065B3 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.9% C 0.130 H 263.4°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4065B3
RGB	rgb(64, 101, 179)
HSL	hsl(221, 47%, 48%)
HSV	hsv(221, 64%, 70%)
CMYK	cmyk(64.2%, 43.6%, 0%, 29.8%)
CIE-LAB	lab(43.73, 12.16, -45.43)
CIE-LCH	lch(43.73, 47.03, 284.99°)
OKLab	oklab(51.89% -0.0149 -0.1296)
OKLCH	oklch(51.89% 0.13 263.4)
XYZ	xyz(14.9019, 13.6506, 44.4886)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4065B3 #B38E40

analogous

#409EB3 #4065B3 #5540B3

triadic

#4065B3 #B34065 #65B340

tetradic

#4065B3 #B3409E #B38E40 #40B355

square

#4065B3 #B3409E #B38E40 #40B355

split-complementary

#4065B3 #B35540 #9EB340

monochromatic

#203259 #304C86 #4065B3 #6787C9 #94ABD9

Accessibility & contrast

On white

5.63

#4065B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#4065B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4065B3

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4065B3	#FFFFFF	#000000	##FFFFFF
##4065B3	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416DB6

Deuteranopia (green-blind)

#2F62B1

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4065b3;
/* rgb */ color: rgb(64, 101, 179);
/* oklch */ color: oklch(51.9% 0.130 263.4);

Tailwind

colors: {
  custom: {
    50: '#8090ca',
    500: '#4065b3',
    950: '#000000',
  },
}

SCSS

$custom: #4065b3;
$custom-light: #8090ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4065b3",
  "rgb": {
    "r": 64,
    "g": 101,
    "b": 179
  },
  "hsl": {
    "h": 220.696,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51894,
    "c": 0.13046,
    "h": 263.4
  },
  "luminance": 0.13652
}

Semantic roles & 50–950 ramp

primary

#4065B3

secondary

#C4B28A

accent

#AC51D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4065B3

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

Preview Lab → · Contrast checker → · Palette generator →