#4571BC#4571BC

#4571BC is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.3% C 0.127 H 260.4°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4571BC
RGB	rgb(69, 113, 188)
HSL	hsl(218, 47%, 50%)
HSV	hsv(218, 63%, 74%)
CMYK	cmyk(63.3%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(47.89, 8.72, -44.02)
CIE-LCH	lch(47.89, 44.88, 281.20°)
OKLab	oklab(55.34% -0.0211 -0.1252)
OKLCH	oklch(55.34% 0.127 260.4)
XYZ	xyz(17.4333, 16.7047, 49.8728)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571BC #BC9045

analogous

#45ADBC #4571BC #5445BC

triadic

#4571BC #BC4571 #71BC45

tetradic

#4571BC #BC45AD #BC9045 #45BC54

square

#4571BC #BC45AD #BC9045 #45BC54

split-complementary

#4571BC #BC5445 #ADBC45

monochromatic

#243B63 #345690 #4571BC #7293CC #9FB6DC

Accessibility & contrast

On white

4.84

#4571BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#4571BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4571BC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571BC	#FFFFFF	#000000	##FFFFFF
##4571BC	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5078BF

Deuteranopia (green-blind)

#3F6DBA

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4571bc;
/* rgb */ color: rgb(69, 113, 188);
/* oklch */ color: oklch(55.3% 0.127 260.4);

Tailwind

colors: {
  custom: {
    50: '#8499d0',
    500: '#4571bc',
    950: '#000000',
  },
}

SCSS

$custom: #4571bc;
$custom-light: #8499d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4571bc",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 217.815,
    "s": 47.036,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55337,
    "c": 0.12699,
    "h": 260.4
  },
  "luminance": 0.16706
}

Semantic roles & 50–950 ramp

primary

#4571BC

secondary

#C9B594

accent

#A551D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4571BC

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

Preview Lab → · Contrast checker → · Palette generator →