#4F77BC#4F77BC

#4F77BC is a mid, moderate blue. Relative luminance 0.185; OKLCH L 57.2% C 0.116 H 260.7°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4F77BC
RGB	rgb(79, 119, 188)
HSL	hsl(218, 45%, 52%)
HSV	hsv(218, 58%, 74%)
CMYK	cmyk(58%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(50.08, 6.99, -40.51)
CIE-LCH	lch(50.08, 41.11, 279.79°)
OKLab	oklab(57.17% -0.0188 -0.1147)
OKLCH	oklch(57.17% 0.116 260.7)
XYZ	xyz(18.8952, 18.4852, 50.1395)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F77BC #BC944F

analogous

#4FADBC #4F77BC #5E4FBC

triadic

#4F77BC #BC4F77 #77BC4F

tetradic

#4F77BC #BC4FAD #BC944F #4FBC5E

square

#4F77BC #BC4FAD #BC944F #4FBC5E

split-complementary

#4F77BC #BC5E4F #ADBC4F

monochromatic

#284069 #395B95 #4F77BC #7B99CD #A8BCDE

Accessibility & contrast

On white

4.47

#4F77BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#4F77BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F77BC

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F77BC	#FFFFFF	#000000	##000000
##4F77BC	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DBF

Deuteranopia (green-blind)

#4C72BB

Tritanopia (blue-blind)

#008690

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4f77bc;
/* rgb */ color: rgb(79, 119, 188);
/* oklch */ color: oklch(57.2% 0.116 260.7);

Tailwind

colors: {
  custom: {
    50: '#899dd0',
    500: '#4f77bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f77bc;
$custom-light: #899dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f77bc",
  "rgb": {
    "r": 79,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 217.982,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57172,
    "c": 0.11625,
    "h": 260.7
  },
  "luminance": 0.18487
}

Semantic roles & 50–950 ramp

primary

#4F77BC

secondary

#CBBA9C

accent

#A553D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F77BC

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

Preview Lab → · Contrast checker → · Palette generator →