#4C77BB#4C77BB

#4C77BB is a mid, moderate blue. Relative luminance 0.183; OKLCH L 57.0% C 0.116 H 259.2°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4C77BB
RGB	rgb(76, 119, 187)
HSL	hsl(217, 45%, 52%)
HSV	hsv(217, 59%, 73%)
CMYK	cmyk(59.4%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(49.88, 6.04, -40.27)
CIE-LCH	lch(49.88, 40.72, 278.53°)
OKLab	oklab(56.96% -0.0217 -0.114)
OKLCH	oklch(56.96% 0.116 259.2)
XYZ	xyz(18.5438, 18.3164, 49.5623)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C77BB #BB904C

analogous

#4CAEBB #4C77BB #594CBB

triadic

#4C77BB #BB4C77 #77BB4C

tetradic

#4C77BB #BB4CAE #BB904C #4CBB59

square

#4C77BB #BB4CAE #BB904C #4CBB59

split-complementary

#4C77BB #BB594C #AEBB4C

monochromatic

#273F66 #385B92 #4C77BB #7899CC #A5BADD

Accessibility & contrast

On white

4.50

#4C77BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4C77BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C77BB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C77BB	#FFFFFF	#000000	##000000
##4C77BB	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7CBE

Deuteranopia (green-blind)

#4C72BA

Tritanopia (blue-blind)

#008690

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4c77bb;
/* rgb */ color: rgb(76, 119, 187);
/* oklch */ color: oklch(57.0% 0.116 259.2);

Tailwind

colors: {
  custom: {
    50: '#879dd0',
    500: '#4c77bb',
    950: '#000000',
  },
}

SCSS

$custom: #4c77bb;
$custom-light: #879dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4c77bb",
  "rgb": {
    "r": 76,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 216.757,
    "s": 44.939,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56958,
    "c": 0.1161,
    "h": 259.2
  },
  "luminance": 0.18318
}

Semantic roles & 50–950 ramp

primary

#4C77BB

secondary

#CAB799

accent

#A253D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4C77BB

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

Preview Lab → · Contrast checker → · Palette generator →