#4F77CC#4F77CC

#4F77CC is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.1% C 0.138 H 263.7°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4F77CC
RGB	rgb(79, 119, 204)
HSL	hsl(221, 55%, 55%)
HSV	hsv(221, 61%, 80%)
CMYK	cmyk(61.3%, 41.7%, 0%, 20%)
CIE-LAB	lab(50.94, 12.39, -48.32)
CIE-LCH	lch(50.94, 49.88, 284.38°)
OKLab	oklab(58.11% -0.0153 -0.1376)
OKLCH	oklch(58.11% 0.138 263.7)
XYZ	xyz(20.7166, 19.2137, 59.7319)
Luminance	0.1922 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F77CC #CCA44F

analogous

#4FB5CC #4F77CC #654FCC

triadic

#4F77CC #CC4F77 #77CC4F

tetradic

#4F77CC #CC4FB5 #CCA44F #4FCC65

square

#4F77CC #CC4FB5 #CCA44F #4FCC65

split-complementary

#4F77CC #CC654F #B5CC4F

monochromatic

#24407D #3259AC #4F77CC #7E9CDA #AEC0E7

Accessibility & contrast

On white

4.34

#4F77CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#4F77CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F77CC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F77CC	#FFFFFF	#000000	##000000
##4F77CC	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCF

Deuteranopia (green-blind)

#3F74CA

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4f77cc;
/* rgb */ color: rgb(79, 119, 204);
/* oklch */ color: oklch(58.1% 0.138 263.7);

Tailwind

colors: {
  custom: {
    50: '#8b9ddc',
    500: '#4f77cc',
    950: '#000000',
  },
}

SCSS

$custom: #4f77cc;
$custom-light: #8b9ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f77cc",
  "rgb": {
    "r": 79,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 220.8,
    "s": 55.066,
    "l": 55.49
  },
  "oklch": {
    "l": 0.58114,
    "c": 0.13841,
    "h": 263.7
  },
  "luminance": 0.19216
}

Semantic roles & 50–950 ramp

primary

#4F77CC

secondary

#D5C5A1

accent

#AF49DE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F77CC

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

Preview Lab → · Contrast checker → · Palette generator →