#4157BB#4157BB

#4157BB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.6% C 0.159 H 270.3°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#4157BB
RGB	rgb(65, 87, 187)
HSL	hsl(229, 48%, 49%)
HSV	hsv(229, 65%, 73%)
CMYK	cmyk(65.2%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(40.45, 24.17, -55.37)
CIE-LCH	lch(40.45, 60.41, 293.58°)
OKLab	oklab(49.58% 0.0008 -0.159)
OKLCH	oklch(49.58% 0.159 270.3)
XYZ	xyz(14.5548, 11.5268, 48.4619)
Luminance	0.1153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4157BB #BBA541

analogous

#4194BB #4157BB #6841BB

triadic

#4157BB #BB4157 #57BB41

tetradic

#4157BB #BB4194 #BBA541 #41BB68

square

#4157BB #BB4194 #BBA541 #41BB68

split-complementary

#4157BB #BB6841 #94BB41

monochromatic

#212D60 #31428E #4157BB #6D7ECC #9AA6DC

Accessibility & contrast

On white

6.35

#4157BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#4157BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4157BB

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4157BB	#FFFFFF	#000000	##FFFFFF
##4157BB	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1365BF

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4157bb;
/* rgb */ color: rgb(65, 87, 187);
/* oklch */ color: oklch(49.6% 0.159 270.3);

Tailwind

colors: {
  custom: {
    50: '#8386d0',
    500: '#4157bb',
    950: '#000000',
  },
}

SCSS

$custom: #4157bb;
$custom-light: #8386d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4157bb",
  "rgb": {
    "r": 65,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 229.18,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49579,
    "c": 0.159,
    "h": 270.3
  },
  "luminance": 0.11528
}

Semantic roles & 50–950 ramp

primary

#4157BB

secondary

#C8BE90

accent

#BF50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4157BB

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

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