#4157CB#4157CB

#4157CB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.8% C 0.181 H 270.5°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#4157CB
RGB	rgb(65, 87, 203)
HSL	hsl(230, 57%, 53%)
HSV	hsv(230, 68%, 80%)
CMYK	cmyk(68%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(41.61, 29.83, -62.79)
CIE-LCH	lch(41.61, 69.51, 295.41°)
OKLab	oklab(50.81% 0.0015 -0.1808)
OKLCH	oklch(50.81% 0.181 270.5)
XYZ	xyz(16.3640, 12.2504, 57.9905)
Luminance	0.1225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4157CB #CBB541

analogous

#419CCB #4157CB #7041CB

triadic

#4157CB #CB4157 #57CB41

tetradic

#4157CB #CB419C #CBB541 #41CB70

square

#4157CB #CB419C #CBB541 #41CB70

split-complementary

#4157CB #CB7041 #9CCB41

monochromatic

#1F2D72 #2C3FA2 #4157CB #7181D8 #A1ACE5

Accessibility & contrast

On white

6.09

#4157CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#4157CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4157CB

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4157CB	#FFFFFF	#000000	##FFFFFF
##4157CB	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005CC9

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4157cb;
/* rgb */ color: rgb(65, 87, 203);
/* oklch */ color: oklch(50.8% 0.181 270.5);

Tailwind

colors: {
  custom: {
    50: '#8686dc',
    500: '#4157cb',
    950: '#000000',
  },
}

SCSS

$custom: #4157cb;
$custom-light: #8686dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4157cb",
  "rgb": {
    "r": 65,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 230.435,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50813,
    "c": 0.18084,
    "h": 270.5
  },
  "luminance": 0.12252
}

Semantic roles & 50–950 ramp

primary

#4157CB

secondary

#D2C896

accent

#C848E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4157CB

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

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