#4F74CB#4F74CB

#4F74CB is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.4% C 0.141 H 265.0°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4F74CB
RGB	rgb(79, 116, 203)
HSL	hsl(222, 54%, 55%)
HSV	hsv(222, 61%, 80%)
CMYK	cmyk(61.1%, 42.9%, 0%, 20.4%)
CIE-LAB	lab(50.05, 13.90, -49.15)
CIE-LCH	lch(50.05, 51.08, 285.79°)
OKLab	oklab(57.42% -0.0123 -0.1401)
OKLCH	oklch(57.42% 0.141 265)
XYZ	xyz(20.2456, 18.4631, 58.9852)
Luminance	0.1847 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F74CB #CBA64F

analogous

#4FB2CB #4F74CB #684FCB

triadic

#4F74CB #CB4F74 #74CB4F

tetradic

#4F74CB #CB4FB2 #CBA64F #4FCB68

square

#4F74CB #CB4FB2 #CBA64F #4FCB68

split-complementary

#4F74CB #CB684F #B2CB4F

monochromatic

#243E7B #3256AA #4F74CB #7E99D9 #ADBFE7

Accessibility & contrast

On white

4.47

#4F74CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4F74CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F74CB

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F74CB	#FFFFFF	#000000	##000000
##4F74CB	1.00	4.47	4.69	4.69
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7DCE

Deuteranopia (green-blind)

#3A72C9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f74cb;
/* rgb */ color: rgb(79, 116, 203);
/* oklch */ color: oklch(57.4% 0.141 265.0);

Tailwind

colors: {
  custom: {
    50: '#8b9bdb',
    500: '#4f74cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f74cb;
$custom-light: #8b9bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4f74cb",
  "rgb": {
    "r": 79,
    "g": 116,
    "b": 203
  },
  "hsl": {
    "h": 222.097,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.57416,
    "c": 0.1406,
    "h": 265
  },
  "luminance": 0.18465
}

Semantic roles & 50–950 ramp

primary

#4F74CB

secondary

#D5C5A1

accent

#B24ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F74CB

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

Preview Lab → · Contrast checker → · Palette generator →