#4B77CB#4B77CB

#4B77CB is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.9% C 0.138 H 262.1°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#4B77CB
RGB	rgb(75, 119, 203)
HSL	hsl(219, 55%, 55%)
HSV	hsv(219, 63%, 80%)
CMYK	cmyk(63.1%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.69, 11.31, -48.16)
CIE-LCH	lch(50.69, 49.47, 283.21°)
OKLab	oklab(57.85% -0.019 -0.1372)
OKLCH	oklch(57.85% 0.138 262.1)
XYZ	xyz(20.2742, 18.9994, 59.0872)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B77CB #CB9F4B

analogous

#4BB7CB #4B77CB #5F4BCB

triadic

#4B77CB #CB4B77 #77CB4B

tetradic

#4B77CB #CB4BB7 #CB9F4B #4BCB5F

square

#4B77CB #CB4BB7 #CB9F4B #4BCB5F

split-complementary

#4B77CB #CB5F4B #B7CB4B

monochromatic

#234079 #315AA8 #4B77CB #7A9BD9 #AABFE6

Accessibility & contrast

On white

4.37

#4B77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#4B77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B77CB

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B77CB	#FFFFFF	#000000	##000000
##4B77CB	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCE

Deuteranopia (green-blind)

#3E73C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4b77cb;
/* rgb */ color: rgb(75, 119, 203);
/* oklch */ color: oklch(57.9% 0.138 262.1);

Tailwind

colors: {
  custom: {
    50: '#899ddb',
    500: '#4b77cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b77cb;
$custom-light: #899ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4b77cb",
  "rgb": {
    "r": 75,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 219.375,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.57851,
    "c": 0.13848,
    "h": 262.1
  },
  "luminance": 0.19001
}

Semantic roles & 50–950 ramp

primary

#4B77CB

secondary

#D4C19E

accent

#AB49DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4B77CB

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

Preview Lab → · Contrast checker → · Palette generator →