#4B71CF#4B71CF

#4B71CF is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.8% C 0.151 H 265.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4B71CF
RGB	rgb(75, 113, 207)
HSL	hsl(223, 58%, 55%)
HSV	hsv(223, 64%, 81%)
CMYK	cmyk(63.8%, 45.4%, 0%, 18.8%)
CIE-LAB	lab(49.26, 16.41, -52.71)
CIE-LCH	lch(49.26, 55.20, 287.29°)
OKLab	oklab(56.83% -0.0123 -0.1506)
OKLCH	oklch(56.83% 0.151 265.3)
XYZ	xyz(20.0654, 17.8093, 61.3995)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B71CF #CFA94B

analogous

#4BB3CF #4B71CF #674BCF

triadic

#4B71CF #CF4B71 #71CF4B

tetradic

#4B71CF #CF4BB3 #CFA94B #4BCF67

square

#4B71CF #CF4BB3 #CFA94B #4BCF67

split-complementary

#4B71CF #CF674B #B3CF4B

monochromatic

#223C7E #2E53AE #4B71CF #7B97DC #ACBDE9

Accessibility & contrast

On white

4.60

#4B71CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#4B71CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4B71CF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B71CF	#FFFFFF	#000000	##FFFFFF
##4B71CF	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD3

Deuteranopia (green-blind)

#2D6FCD

Tritanopia (blue-blind)

#008696

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4b71cf;
/* rgb */ color: rgb(75, 113, 207);
/* oklch */ color: oklch(56.8% 0.151 265.3);

Tailwind

colors: {
  custom: {
    50: '#8a99de',
    500: '#4b71cf',
    950: '#000000',
  },
}

SCSS

$custom: #4b71cf;
$custom-light: #8a99de;
$custom-dark: #000000;

JSON

{
  "hex": "#4b71cf",
  "rgb": {
    "r": 75,
    "g": 113,
    "b": 207
  },
  "hsl": {
    "h": 222.727,
    "s": 57.895,
    "l": 55.294
  },
  "oklch": {
    "l": 0.56831,
    "c": 0.15112,
    "h": 265.3
  },
  "luminance": 0.17811
}

Semantic roles & 50–950 ramp

primary

#4B71CF

secondary

#D6C79F

accent

#B547E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #4B71CF

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

Preview Lab → · Contrast checker → · Palette generator →