#4D77CB#4D77CB

#4D77CB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.0% C 0.138 H 262.8°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4D77CB
RGB	rgb(77, 119, 203)
HSL	hsl(220, 55%, 55%)
HSV	hsv(220, 62%, 80%)
CMYK	cmyk(62.1%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.78, 11.67, -48.00)
CIE-LCH	lch(50.78, 49.40, 283.67°)
OKLab	oklab(57.95% -0.0173 -0.1367)
OKLCH	oklch(57.95% 0.138 262.8)
XYZ	xyz(20.4331, 19.0814, 59.0946)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D77CB #CBA14D

analogous

#4DB6CB #4D77CB #624DCB

triadic

#4D77CB #CB4D77 #77CB4D

tetradic

#4D77CB #CB4DB6 #CBA14D #4DCB62

square

#4D77CB #CB4DB6 #CBA14D #4DCB62

split-complementary

#4D77CB #CB624D #B6CB4D

monochromatic

#24407A #3159A9 #4D77CB #7C9BD9 #ACBFE7

Accessibility & contrast

On white

4.36

#4D77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4D77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D77CB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D77CB	#FFFFFF	#000000	##000000
##4D77CB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCE

Deuteranopia (green-blind)

#3F74C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4d77cb;
/* rgb */ color: rgb(77, 119, 203);
/* oklch */ color: oklch(58.0% 0.138 262.8);

Tailwind

colors: {
  custom: {
    50: '#8a9ddb',
    500: '#4d77cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d77cb;
$custom-light: #8a9ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4d77cb",
  "rgb": {
    "r": 77,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 220,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.57951,
    "c": 0.13776,
    "h": 262.8
  },
  "luminance": 0.19083
}

Semantic roles & 50–950 ramp

primary

#4D77CB

secondary

#D4C39F

accent

#AD4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4D77CB

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

Preview Lab → · Contrast checker → · Palette generator →