#4158CC#4158CC

#4158CC is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.181 H 270.2°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4158CC
RGB	rgb(65, 88, 204)
HSL	hsl(230, 58%, 53%)
HSV	hsv(230, 68%, 80%)
CMYK	cmyk(68.1%, 56.9%, 0%, 20%)
CIE-LAB	lab(41.94, 29.55, -62.83)
CIE-LCH	lch(41.94, 69.43, 295.19°)
OKLab	oklab(51.08% 0.0007 -0.1809)
OKLCH	oklch(51.08% 0.181 270.2)
XYZ	xyz(16.5651, 12.4613, 58.6473)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4158CC #CCB541

analogous

#419DCC #4158CC #6F41CC

triadic

#4158CC #CC4158 #58CC41

tetradic

#4158CC #CC419D #CCB541 #41CC6F

square

#4158CC #CC419D #CCB541 #41CC6F

split-complementary

#4158CC #CC6F41 #9DCC41

monochromatic

#1F2D74 #2C40A4 #4158CC #7182D9 #A1ADE6

Accessibility & contrast

On white

6.01

#4158CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#4158CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4158CC

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4158CC	#FFFFFF	#000000	##FFFFFF
##4158CC	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD0

Deuteranopia (green-blind)

#005DCA

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4158cc;
/* rgb */ color: rgb(65, 88, 204);
/* oklch */ color: oklch(51.1% 0.181 270.2);

Tailwind

colors: {
  custom: {
    50: '#8686dc',
    500: '#4158cc',
    950: '#000000',
  },
}

SCSS

$custom: #4158cc;
$custom-light: #8686dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4158cc",
  "rgb": {
    "r": 65,
    "g": 88,
    "b": 204
  },
  "hsl": {
    "h": 230.072,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.51082,
    "c": 0.18094,
    "h": 270.2
  },
  "luminance": 0.12463
}

Semantic roles & 50–950 ramp

primary

#4158CC

secondary

#D3C996

accent

#C747E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4158CC

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

Preview Lab → · Contrast checker → · Palette generator →