#4571D1#4571D1

#4571D1 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.7% C 0.156 H 263.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4571D1
RGB	rgb(69, 113, 209)
HSL	hsl(221, 60%, 55%)
HSV	hsv(221, 67%, 82%)
CMYK	cmyk(67%, 45.9%, 0%, 18%)
CIE-LAB	lab(49.10, 16.11, -54.12)
CIE-LCH	lch(49.10, 56.47, 286.57°)
OKLab	oklab(56.67% -0.0172 -0.1549)
OKLCH	oklch(56.67% 0.156 263.7)
XYZ	xyz(19.8640, 17.6770, 62.6744)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4571D1 #D1A545

analogous

#45B7D1 #4571D1 #5F45D1

triadic

#4571D1 #D14571 #71D145

tetradic

#4571D1 #D145B7 #D1A545 #45D15F

square

#4571D1 #D145B7 #D1A545 #45D15F

split-complementary

#4571D1 #D15F45 #B7D145

monochromatic

#1F3C7D #2B54AE #4571D1 #7696DD #A7BCE9

Accessibility & contrast

On white

4.63

#4571D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#4571D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4571D1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4571D1	#FFFFFF	#000000	##FFFFFF
##4571D1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#417CD5

Deuteranopia (green-blind)

#256FCF

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4571d1;
/* rgb */ color: rgb(69, 113, 209);
/* oklch */ color: oklch(56.7% 0.156 263.7);

Tailwind

colors: {
  custom: {
    50: '#8799e0',
    500: '#4571d1',
    950: '#000000',
  },
}

SCSS

$custom: #4571d1;
$custom-light: #8799e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4571d1",
  "rgb": {
    "r": 69,
    "g": 113,
    "b": 209
  },
  "hsl": {
    "h": 221.143,
    "s": 60.345,
    "l": 54.51
  },
  "oklch": {
    "l": 0.56668,
    "c": 0.15584,
    "h": 263.7
  },
  "luminance": 0.17679
}

Semantic roles & 50–950 ramp

primary

#4571D1

secondary

#D7C49B

accent

#B144E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0D15

muted

#7D7E83

Preview Lab

Preview with #4571D1

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

Preview Lab → · Contrast checker → · Palette generator →