#4577CF#4577CF

#4577CF is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.8% C 0.146 H 260.8°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4577CF
RGB	rgb(69, 119, 207)
HSL	hsl(218, 59%, 54%)
HSV	hsv(218, 67%, 81%)
CMYK	cmyk(66.7%, 42.5%, 0%, 18.8%)
CIE-LAB	lab(50.64, 11.67, -50.52)
CIE-LCH	lch(50.64, 51.85, 283.01°)
OKLab	oklab(57.82% -0.0232 -0.1442)
OKLCH	oklch(57.82% 0.146 260.8)
XYZ	xyz(20.3095, 18.9618, 61.6091)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4577CF #CF9D45

analogous

#45BCCF #4577CF #5845CF

triadic

#4577CF #CF4577 #77CF45

tetradic

#4577CF #CF45BC #CF9D45 #45CF58

square

#4577CF #CF45BC #CF9D45 #45CF58

split-complementary

#4577CF #CF5845 #BCCF45

monochromatic

#20407A #2C5AAB #4577CF #769BDC #A6BEE8

Accessibility & contrast

On white

4.38

#4577CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#4577CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4577CF

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4577CF	#FFFFFF	#000000	##000000
##4577CF	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7FD2

Deuteranopia (green-blind)

#3773CD

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4577cf;
/* rgb */ color: rgb(69, 119, 207);
/* oklch */ color: oklch(57.8% 0.146 260.8);

Tailwind

colors: {
  custom: {
    50: '#879dde',
    500: '#4577cf',
    950: '#000000',
  },
}

SCSS

$custom: #4577cf;
$custom-light: #879dde;
$custom-dark: #000000;

JSON

{
  "hex": "#4577cf",
  "rgb": {
    "r": 69,
    "g": 119,
    "b": 207
  },
  "hsl": {
    "h": 218.261,
    "s": 58.974,
    "l": 54.118
  },
  "oklch": {
    "l": 0.57816,
    "c": 0.14607,
    "h": 260.8
  },
  "luminance": 0.18964
}

Semantic roles & 50–950 ramp

primary

#4577CF

secondary

#D5C09B

accent

#A946E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4577CF

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

Preview Lab → · Contrast checker → · Palette generator →