#2F66B5#2F66B5

#2F66B5 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.5% C 0.138 H 257.8°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#2F66B5
RGB	rgb(47, 102, 181)
HSL	hsl(215, 59%, 45%)
HSV	hsv(215, 74%, 71%)
CMYK	cmyk(74%, 43.6%, 0%, 29%)
CIE-LAB	lab(43.42, 9.56, -47.13)
CIE-LCH	lch(43.42, 48.09, 281.47°)
OKLab	oklab(51.5% -0.029 -0.1349)
OKLCH	oklch(51.5% 0.138 257.8)
XYZ	xyz(14.2611, 13.4417, 45.5500)
Luminance	0.1344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F66B5 #B57E2F

analogous

#2FA9B5 #2F66B5 #3B2FB5

triadic

#2F66B5 #B52F66 #66B52F

tetradic

#2F66B5 #B52FA9 #B57E2F #2FB53B

square

#2F66B5 #B52FA9 #B57E2F #2FB53B

split-complementary

#2F66B5 #B53B2F #A9B52F

monochromatic

#162F54 #224B84 #2F66B5 #5085D1 #80A7DE

Accessibility & contrast

On white

5.69

#2F66B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#2F66B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F66B5

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F66B5	#FFFFFF	#000000	##FFFFFF
##2F66B5	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6DB8

Deuteranopia (green-blind)

#2661B3

Tritanopia (blue-blind)

#007984

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2f66b5;
/* rgb */ color: rgb(47, 102, 181);
/* oklch */ color: oklch(51.5% 0.138 257.8);

Tailwind

colors: {
  custom: {
    50: '#7991cc',
    500: '#2f66b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f66b5;
$custom-light: #7991cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f66b5",
  "rgb": {
    "r": 47,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 215.373,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.515,
    "c": 0.13795,
    "h": 257.8
  },
  "luminance": 0.13443
}

Semantic roles & 50–950 ramp

primary

#2F66B5

secondary

#C7A779

accent

#A246E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F66B5

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

Preview Lab → · Contrast checker → · Palette generator →