#2F66B8#2F66B8

#2F66B8 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.7% C 0.142 H 258.4°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#2F66B8
RGB	rgb(47, 102, 184)
HSL	hsl(216, 59%, 45%)
HSV	hsv(216, 74%, 72%)
CMYK	cmyk(74.5%, 44.6%, 0%, 27.8%)
CIE-LAB	lab(43.60, 10.69, -48.59)
CIE-LCH	lch(43.60, 49.75, 282.41°)
OKLab	oklab(51.7% -0.0285 -0.1391)
OKLCH	oklch(51.7% 0.142 258.4)
XYZ	xyz(14.5722, 13.5661, 47.1886)
Luminance	0.1357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F66B8 #B8812F

analogous

#2FABB8 #2F66B8 #3C2FB8

triadic

#2F66B8 #B82F66 #66B82F

tetradic

#2F66B8 #B82FAB #B8812F #2FB83C

square

#2F66B8 #B82FAB #B8812F #2FB83C

split-complementary

#2F66B8 #B83C2F #ABB82F

monochromatic

#163057 #234B87 #2F66B8 #5285D3 #82A8DF

Accessibility & contrast

On white

5.65

#2F66B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#2F66B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F66B8

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F66B8	#FFFFFF	#000000	##FFFFFF
##2F66B8	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6EBB

Deuteranopia (green-blind)

#2161B6

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2f66b8;
/* rgb */ color: rgb(47, 102, 184);
/* oklch */ color: oklch(51.7% 0.142 258.4);

Tailwind

colors: {
  custom: {
    50: '#7a91ce',
    500: '#2f66b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f66b8;
$custom-light: #7a91ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f66b8",
  "rgb": {
    "r": 47,
    "g": 102,
    "b": 184
  },
  "hsl": {
    "h": 215.912,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.517,
    "c": 0.14203,
    "h": 258.4
  },
  "luminance": 0.13568
}

Semantic roles & 50–950 ramp

primary

#2F66B8

secondary

#C8A97B

accent

#A345E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F66B8

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

Preview Lab → · Contrast checker → · Palette generator →