#4151BC#4151BC

#4151BC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.5% C 0.168 H 272.1°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#4151BC
RGB	rgb(65, 81, 188)
HSL	hsl(232, 49%, 50%)
HSV	hsv(232, 65%, 74%)
CMYK	cmyk(65.4%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.96, 28.37, -58.37)
CIE-LCH	lch(38.96, 64.90, 295.93°)
OKLab	oklab(48.49% 0.0063 -0.1679)
OKLCH	oklch(48.49% 0.168 272.1)
XYZ	xyz(14.1965, 10.6383, 48.8725)
Luminance	0.1064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4151BC #BCAC41

analogous

#418FBC #4151BC #6E41BC

triadic

#4151BC #BC4151 #51BC41

tetradic

#4151BC #BC418F #BCAC41 #41BC6E

square

#4151BC #BC418F #BCAC41 #41BC6E

split-complementary

#4151BC #BC6E41 #8FBC41

monochromatic

#222A61 #313D8F #4151BC #6E7ACD #9BA3DC

Accessibility & contrast

On white

6.71

#4151BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#4151BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4151BC

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4151BC	#FFFFFF	#000000	##FFFFFF
##4151BC	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0056BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4151bc;
/* rgb */ color: rgb(65, 81, 188);
/* oklch */ color: oklch(48.5% 0.168 272.1);

Tailwind

colors: {
  custom: {
    50: '#8381d1',
    500: '#4151bc',
    950: '#000000',
  },
}

SCSS

$custom: #4151bc;
$custom-light: #8381d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4151bc",
  "rgb": {
    "r": 65,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 232.195,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.48485,
    "c": 0.16802,
    "h": 272.1
  },
  "luminance": 0.1064
}

Semantic roles & 50–950 ramp

primary

#4151BC

secondary

#C9C190

accent

#C650D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4151BC

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

Preview Lab → · Contrast checker → · Palette generator →