#4058B3#4058B3

#4058B3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.147 H 269.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#4058B3
RGB	rgb(64, 88, 179)
HSL	hsl(227, 47%, 48%)
HSV	hsv(227, 64%, 70%)
CMYK	cmyk(64.2%, 50.8%, 0%, 29.8%)
CIE-LAB	lab(40.12, 20.51, -51.22)
CIE-LCH	lch(40.12, 55.17, 291.82°)
OKLab	oklab(49.14% -0.0019 -0.1468)
OKLCH	oklch(49.14% 0.147 269.3)
XYZ	xyz(13.7380, 11.3229, 44.1006)
Luminance	0.1132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4058B3 #B39B40

analogous

#4092B3 #4058B3 #6140B3

triadic

#4058B3 #B34058 #58B340

tetradic

#4058B3 #B34092 #B39B40 #40B361

square

#4058B3 #B34092 #B39B40 #40B361

split-complementary

#4058B3 #B36140 #92B340

monochromatic

#202C59 #304286 #4058B3 #677CC9 #94A3D9

Accessibility & contrast

On white

6.43

#4058B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#4058B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4058B3

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4058B3	#FFFFFF	#000000	##FFFFFF
##4058B3	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2564B6

Deuteranopia (green-blind)

#005AB1

Tritanopia (blue-blind)

#006D7D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4058b3;
/* rgb */ color: rgb(64, 88, 179);
/* oklch */ color: oklch(49.1% 0.147 269.3);

Tailwind

colors: {
  custom: {
    50: '#8186ca',
    500: '#4058b3',
    950: '#000000',
  },
}

SCSS

$custom: #4058b3;
$custom-light: #8186ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4058b3",
  "rgb": {
    "r": 64,
    "g": 88,
    "b": 179
  },
  "hsl": {
    "h": 227.478,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49137,
    "c": 0.14682,
    "h": 269.3
  },
  "luminance": 0.11324
}

Semantic roles & 50–950 ramp

primary

#4058B3

secondary

#C4B88A

accent

#BB51D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #4058B3

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

Preview Lab → · Contrast checker → · Palette generator →