#2F66B4#2F66B4

#2F66B4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.4% C 0.137 H 257.6°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#2F66B4
RGB	rgb(47, 102, 180)
HSL	hsl(215, 59%, 45%)
HSV	hsv(215, 74%, 71%)
CMYK	cmyk(73.9%, 43.3%, 0%, 29.4%)
CIE-LAB	lab(43.36, 9.19, -46.64)
CIE-LCH	lch(43.36, 47.54, 281.14°)
OKLab	oklab(51.43% -0.0292 -0.1334)
OKLCH	oklch(51.43% 0.137 257.6)
XYZ	xyz(14.1589, 13.4008, 45.0116)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F66B4 #B47D2F

analogous

#2FA9B4 #2F66B4 #3B2FB4

triadic

#2F66B4 #B42F66 #66B42F

tetradic

#2F66B4 #B42FA9 #B47D2F #2FB43B

square

#2F66B4 #B42FA9 #B47D2F #2FB43B

split-complementary

#2F66B4 #B43B2F #A9B42F

monochromatic

#162F53 #224B83 #2F66B4 #4F85D1 #80A7DE

Accessibility & contrast

On white

5.71

#2F66B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#2F66B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F66B4

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F66B4	#FFFFFF	#000000	##FFFFFF
##2F66B4	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406DB7

Deuteranopia (green-blind)

#2761B2

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #2f66b4;
/* rgb */ color: rgb(47, 102, 180);
/* oklch */ color: oklch(51.4% 0.137 257.6);

Tailwind

colors: {
  custom: {
    50: '#7991cb',
    500: '#2f66b4',
    950: '#000000',
  },
}

SCSS

$custom: #2f66b4;
$custom-light: #7991cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f66b4",
  "rgb": {
    "r": 47,
    "g": 102,
    "b": 180
  },
  "hsl": {
    "h": 215.188,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51433,
    "c": 0.1366,
    "h": 257.6
  },
  "luminance": 0.13402
}

Semantic roles & 50–950 ramp

primary

#2F66B4

secondary

#C7A678

accent

#A146E2

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F66B4

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

Preview Lab → · Contrast checker → · Palette generator →