#4058B4#4058B4

#4058B4 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.2% C 0.148 H 269.3°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4058B4
RGB	rgb(64, 88, 180)
HSL	hsl(228, 48%, 48%)
HSV	hsv(228, 64%, 71%)
CMYK	cmyk(64.4%, 51.1%, 0%, 29.4%)
CIE-LAB	lab(40.19, 20.86, -51.70)
CIE-LCH	lch(40.19, 55.75, 291.98°)
OKLab	oklab(49.21% -0.0018 -0.1482)
OKLCH	oklch(49.21% 0.148 269.3)
XYZ	xyz(13.8395, 11.3635, 44.6352)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4058B4 #B49C40

analogous

#4092B4 #4058B4 #6240B4

triadic

#4058B4 #B44058 #58B440

tetradic

#4058B4 #B44092 #B49C40 #40B462

square

#4058B4 #B44092 #B49C40 #40B462

split-complementary

#4058B4 #B46240 #92B440

monochromatic

#202C5A #304287 #4058B4 #687CC9 #95A3D9

Accessibility & contrast

On white

6.42

#4058B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#4058B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4058B4

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4058B4	#FFFFFF	#000000	##FFFFFF
##4058B4	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2364B7

Deuteranopia (green-blind)

#005AB2

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4058b4;
/* rgb */ color: rgb(64, 88, 180);
/* oklch */ color: oklch(49.2% 0.148 269.3);

Tailwind

colors: {
  custom: {
    50: '#8186cb',
    500: '#4058b4',
    950: '#000000',
  },
}

SCSS

$custom: #4058b4;
$custom-light: #8186cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4058b4",
  "rgb": {
    "r": 64,
    "g": 88,
    "b": 180
  },
  "hsl": {
    "h": 227.586,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49209,
    "c": 0.14823,
    "h": 269.3
  },
  "luminance": 0.11365
}

Semantic roles & 50–950 ramp

primary

#4058B4

secondary

#C5B98B

accent

#BB51D7

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4058B4

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

Preview Lab → · Contrast checker → · Palette generator →