#4971BB#4971BB

#4971BB is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.5% C 0.124 H 261.7°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4971BB
RGB	rgb(73, 113, 187)
HSL	hsl(219, 46%, 51%)
HSV	hsv(219, 61%, 73%)
CMYK	cmyk(61%, 39.6%, 0%, 26.7%)
CIE-LAB	lab(48.02, 9.13, -43.21)
CIE-LCH	lch(48.02, 44.17, 281.93°)
OKLab	oklab(55.48% -0.0178 -0.1228)
OKLCH	oklch(55.48% 0.124 261.7)
XYZ	xyz(17.6193, 16.8130, 49.3208)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4971BB #BB9349

analogous

#49AABB #4971BB #5A49BB

triadic

#4971BB #BB4971 #71BB49

tetradic

#4971BB #BB49AA #BB9349 #49BB5A

square

#4971BB #BB49AA #BB9349 #49BB5A

split-complementary

#4971BB #BB5A49 #AABB49

monochromatic

#253B64 #365691 #4971BB #7694CC #A2B7DC

Accessibility & contrast

On white

4.81

#4971BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#4971BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4971BB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4971BB	#FFFFFF	#000000	##FFFFFF
##4971BB	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5178BE

Deuteranopia (green-blind)

#416DB9

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4971bb;
/* rgb */ color: rgb(73, 113, 187);
/* oklch */ color: oklch(55.5% 0.124 261.7);

Tailwind

colors: {
  custom: {
    50: '#8699d0',
    500: '#4971bb',
    950: '#000000',
  },
}

SCSS

$custom: #4971bb;
$custom-light: #8699d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4971bb",
  "rgb": {
    "r": 73,
    "g": 113,
    "b": 187
  },
  "hsl": {
    "h": 218.947,
    "s": 45.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.55479,
    "c": 0.12408,
    "h": 261.7
  },
  "luminance": 0.16815
}

Semantic roles & 50–950 ramp

primary

#4971BB

secondary

#C9B797

accent

#A753D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #4971BB

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

Preview Lab → · Contrast checker → · Palette generator →