#2B66B8#2B66B8

#2B66B8 is a mid, vivid cyan. Relative luminance 0.135; OKLCH L 51.6% C 0.143 H 257.5°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#2B66B8
RGB	rgb(43, 102, 184)
HSL	hsl(215, 62%, 45%)
HSV	hsv(215, 77%, 72%)
CMYK	cmyk(76.6%, 44.6%, 0%, 27.8%)
CIE-LAB	lab(43.47, 10.19, -48.81)
CIE-LCH	lch(43.47, 49.86, 281.79°)
OKLab	oklab(51.56% -0.0311 -0.1398)
OKLCH	oklch(51.56% 0.143 257.5)
XYZ	xyz(14.3962, 13.4754, 47.1804)
Luminance	0.1348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B66B8 #B87D2B

analogous

#2BADB8 #2B66B8 #372BB8

triadic

#2B66B8 #B82B66 #66B82B

tetradic

#2B66B8 #B82BAD #B87D2B #2BB837

square

#2B66B8 #B82BAD #B87D2B #2BB837

split-complementary

#2B66B8 #B8372B #ADB82B

monochromatic

#142F55 #1F4B86 #2B66B8 #4B85D5 #7DA7E1

Accessibility & contrast

On white

5.68

#2B66B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#2B66B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B66B8

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B66B8	#FFFFFF	#000000	##FFFFFF
##2B66B8	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6EBB

Deuteranopia (green-blind)

#1F61B6

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #2b66b8;
/* rgb */ color: rgb(43, 102, 184);
/* oklch */ color: oklch(51.6% 0.143 257.5);

Tailwind

colors: {
  custom: {
    50: '#7991ce',
    500: '#2b66b8',
    950: '#000000',
  },
}

SCSS

$custom: #2b66b8;
$custom-light: #7991ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2b66b8",
  "rgb": {
    "r": 43,
    "g": 102,
    "b": 184
  },
  "hsl": {
    "h": 214.894,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5156,
    "c": 0.14327,
    "h": 257.5
  },
  "luminance": 0.13477
}

Semantic roles & 50–950 ramp

primary

#2B66B8

secondary

#C9A676

accent

#A143E5

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2B66B8

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

Preview Lab → · Contrast checker → · Palette generator →