#4158BC#4158BC

#4158BC is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.9% C 0.159 H 270.0°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#4158BC
RGB	rgb(65, 88, 188)
HSL	hsl(229, 49%, 50%)
HSV	hsv(229, 65%, 74%)
CMYK	cmyk(65.4%, 53.2%, 0%, 26.3%)
CIE-LAB	lab(40.79, 23.88, -55.41)
CIE-LCH	lch(40.79, 60.34, 293.31°)
OKLab	oklab(49.85% -0.0001 -0.1591)
OKLCH	oklch(49.85% 0.159 270)
XYZ	xyz(14.7437, 11.7328, 49.0549)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4158BC #BCA541

analogous

#4196BC #4158BC #6741BC

triadic

#4158BC #BC4158 #58BC41

tetradic

#4158BC #BC4196 #BCA541 #41BC67

square

#4158BC #BC4196 #BCA541 #41BC67

split-complementary

#4158BC #BC6741 #96BC41

monochromatic

#222D61 #31438F #4158BC #6E7FCD #9BA7DC

Accessibility & contrast

On white

6.27

#4158BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#4158BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4158BC

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4158BC	#FFFFFF	#000000	##FFFFFF
##4158BC	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1566C0

Deuteranopia (green-blind)

#005BBA

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4158bc;
/* rgb */ color: rgb(65, 88, 188);
/* oklch */ color: oklch(49.9% 0.159 270.0);

Tailwind

colors: {
  custom: {
    50: '#8386d1',
    500: '#4158bc',
    950: '#000000',
  },
}

SCSS

$custom: #4158bc;
$custom-light: #8386d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4158bc",
  "rgb": {
    "r": 65,
    "g": 88,
    "b": 188
  },
  "hsl": {
    "h": 228.78,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.49853,
    "c": 0.15912,
    "h": 270
  },
  "luminance": 0.11734
}

Semantic roles & 50–950 ramp

primary

#4158BC

secondary

#C9BE90

accent

#BF50D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4158BC

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

Preview Lab → · Contrast checker → · Palette generator →