#4B77BB#4B77BB

#4B77BB is a mid, moderate blue. Relative luminance 0.183; OKLCH L 56.9% C 0.117 H 258.8°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4B77BB
RGB	rgb(75, 119, 187)
HSL	hsl(216, 45%, 51%)
HSV	hsv(216, 60%, 73%)
CMYK	cmyk(59.9%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(49.83, 5.84, -40.35)
CIE-LCH	lch(49.83, 40.77, 278.23°)
OKLab	oklab(56.91% -0.0226 -0.1143)
OKLCH	oklch(56.91% 0.117 258.8)
XYZ	xyz(18.4650, 18.2758, 49.5586)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B77BB #BB8F4B

analogous

#4BAFBB #4B77BB #574BBB

triadic

#4B77BB #BB4B77 #77BB4B

tetradic

#4B77BB #BB4BAF #BB8F4B #4BBB57

square

#4B77BB #BB4BAF #BB8F4B #4BBB57

split-complementary

#4B77BB #BB574B #AFBB4B

monochromatic

#263F65 #375B92 #4B77BB #7799CC #A4BADD

Accessibility & contrast

On white

4.51

#4B77BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#4B77BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B77BB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B77BB	#FFFFFF	#000000	##000000
##4B77BB	1.00	4.51	4.66	4.66
#FFFFFF	4.51	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)

#767676

Design tokens & code

CSS

--color: #4b77bb;
/* rgb */ color: rgb(75, 119, 187);
/* oklch */ color: oklch(56.9% 0.117 258.8);

Tailwind

colors: {
  custom: {
    50: '#869dd0',
    500: '#4b77bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b77bb;
$custom-light: #869dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b77bb",
  "rgb": {
    "r": 75,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 216.429,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56906,
    "c": 0.11651,
    "h": 258.8
  },
  "luminance": 0.18277
}

Semantic roles & 50–950 ramp

primary

#4B77BB

secondary

#CAB698

accent

#A253D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4B77BB

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

Preview Lab → · Contrast checker → · Palette generator →