#4C77CB#4C77CB

#4C77CB is a mid, vivid blue. Relative luminance 0.190; OKLCH L 57.9% C 0.138 H 262.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4C77CB
RGB	rgb(76, 119, 203)
HSL	hsl(220, 55%, 55%)
HSV	hsv(220, 63%, 80%)
CMYK	cmyk(62.6%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(50.73, 11.49, -48.08)
CIE-LCH	lch(50.73, 49.43, 283.44°)
OKLab	oklab(57.9% -0.0181 -0.1369)
OKLCH	oklch(57.9% 0.138 262.5)
XYZ	xyz(20.3530, 19.0401, 59.0909)
Luminance	0.1904 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C77CB #CBA04C

analogous

#4CB6CB #4C77CB #614CCB

triadic

#4C77CB #CB4C77 #77CB4C

tetradic

#4C77CB #CB4CB6 #CBA04C #4CCB61

square

#4C77CB #CB4CB6 #CBA04C #4CCB61

split-complementary

#4C77CB #CB614C #B6CB4C

monochromatic

#234079 #315AA9 #4C77CB #7B9BD9 #ABBFE7

Accessibility & contrast

On white

4.37

#4C77CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#4C77CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C77CB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C77CB	#FFFFFF	#000000	##000000
##4C77CB	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCE

Deuteranopia (green-blind)

#3F73C9

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4c77cb;
/* rgb */ color: rgb(76, 119, 203);
/* oklch */ color: oklch(57.9% 0.138 262.5);

Tailwind

colors: {
  custom: {
    50: '#899ddb',
    500: '#4c77cb',
    950: '#000000',
  },
}

SCSS

$custom: #4c77cb;
$custom-light: #899ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#4c77cb",
  "rgb": {
    "r": 76,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 219.685,
    "s": 54.978,
    "l": 54.706
  },
  "oklch": {
    "l": 0.579,
    "c": 0.13812,
    "h": 262.5
  },
  "luminance": 0.19042
}

Semantic roles & 50–950 ramp

primary

#4C77CB

secondary

#D4C29F

accent

#AC49DE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4C77CB

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

Preview Lab → · Contrast checker → · Palette generator →