#4F81CA#4F81CA

#4F81CA is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.2% C 0.124 H 257.8°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4F81CA
RGB	rgb(79, 129, 202)
HSL	hsl(216, 54%, 55%)
HSV	hsv(216, 61%, 79%)
CMYK	cmyk(60.9%, 36.1%, 0%, 20.8%)
CIE-LAB	lab(53.63, 5.63, -42.91)
CIE-LCH	lch(53.63, 43.28, 277.47°)
OKLab	oklab(60.17% -0.0263 -0.1216)
OKLCH	oklch(60.17% 0.124 257.8)
XYZ	xyz(21.7316, 21.6251, 58.8945)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F81CA #CA984F

analogous

#4FBECA #4F81CA #5B4FCA

triadic

#4F81CA #CA4F81 #81CA4F

tetradic

#4F81CA #CA4FBE #CA984F #4FCA5B

square

#4F81CA #CA4FBE #CA984F #4FCA5B

split-complementary

#4F81CA #CA5B4F #BECA4F

monochromatic

#25477A #3363A9 #4F81CA #7EA3D8 #ADC4E6

Accessibility & contrast

On white

3.94

#4F81CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4F81CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F81CA

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F81CA	#FFFFFF	#000000	##000000
##4F81CA	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6286CD

Deuteranopia (green-blind)

#517BC8

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4f81ca;
/* rgb */ color: rgb(79, 129, 202);
/* oklch */ color: oklch(60.2% 0.124 257.8);

Tailwind

colors: {
  custom: {
    50: '#8ba5da',
    500: '#4f81ca',
    950: '#000000',
  },
}

SCSS

$custom: #4f81ca;
$custom-light: #8ba5da;
$custom-dark: #000000;

JSON

{
  "hex": "#4f81ca",
  "rgb": {
    "r": 79,
    "g": 129,
    "b": 202
  },
  "hsl": {
    "h": 215.61,
    "s": 53.712,
    "l": 55.098
  },
  "oklch": {
    "l": 0.60165,
    "c": 0.12442,
    "h": 257.8
  },
  "luminance": 0.21627
}

Semantic roles & 50–950 ramp

primary

#4F81CA

secondary

#D4BFA1

accent

#A24BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #4F81CA

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

Preview Lab → · Contrast checker → · Palette generator →