#4D81CF#4D81CF

#4D81CF is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.4% C 0.132 H 258.3°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4D81CF
RGB	rgb(77, 129, 207)
HSL	hsl(216, 58%, 56%)
HSV	hsv(216, 63%, 81%)
CMYK	cmyk(62.8%, 37.7%, 0%, 18.8%)
CIE-LAB	lab(53.79, 6.94, -45.49)
CIE-LCH	lch(53.79, 46.01, 278.68°)
OKLab	oklab(60.35% -0.0267 -0.1292)
OKLCH	oklch(60.35% 0.132 258.3)
XYZ	xyz(22.1693, 21.7812, 62.0553)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D81CF #CF9B4D

analogous

#4DC2CF #4D81CF #5A4DCF

triadic

#4D81CF #CF4D81 #81CF4D

tetradic

#4D81CF #CF4DC2 #CF9B4D #4DCF5A

square

#4D81CF #CF4DC2 #CF9B4D #4DCF5A

split-complementary

#4D81CF #CF5A4D #C2CF4D

monochromatic

#22487F #2F63AF #4D81CF #7DA3DC #ADC5E9

Accessibility & contrast

On white

3.92

#4D81CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#4D81CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D81CF

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D81CF	#FFFFFF	#000000	##000000
##4D81CF	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F87D2

Deuteranopia (green-blind)

#4D7BCD

Tritanopia (blue-blind)

#00939E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4d81cf;
/* rgb */ color: rgb(77, 129, 207);
/* oklch */ color: oklch(60.4% 0.132 258.3);

Tailwind

colors: {
  custom: {
    50: '#8aa5de',
    500: '#4d81cf',
    950: '#000000',
  },
}

SCSS

$custom: #4d81cf;
$custom-light: #8aa5de;
$custom-dark: #000000;

JSON

{
  "hex": "#4d81cf",
  "rgb": {
    "r": 77,
    "g": 129,
    "b": 207
  },
  "hsl": {
    "h": 216,
    "s": 57.522,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60354,
    "c": 0.13191,
    "h": 258.3
  },
  "luminance": 0.21783
}

Semantic roles & 50–950 ramp

primary

#4D81CF

secondary

#D7C1A1

accent

#A347E1

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #4D81CF

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

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