#2366B2#2366B2

#2366B2 is a mid, vivid cyan. Relative luminance 0.131; OKLCH L 50.9% C 0.138 H 254.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#2366B2
RGB	rgb(35, 102, 178)
HSL	hsl(212, 67%, 42%)
HSV	hsv(212, 80%, 70%)
CMYK	cmyk(80.3%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(42.87, 6.97, -46.27)
CIE-LCH	lch(42.87, 46.80, 278.56°)
OKLab	oklab(50.91% -0.037 -0.1325)
OKLCH	oklch(50.91% 0.138 254.4)
XYZ	xyz(13.4774, 13.0728, 43.9238)
Luminance	0.1307 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2366B2 #B26F23

analogous

#23AEB2 #2366B2 #2823B2

triadic

#2366B2 #B22366 #66B223

tetradic

#2366B2 #B223AE #B26F23 #23B228

square

#2366B2 #B223AE #B26F23 #23B228

split-complementary

#2366B2 #B22823 #AEB223

monochromatic

#0F2B4C #19497F #2366B2 #3A84D8 #6DA4E2

Accessibility & contrast

On white

5.81

#2366B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#2366B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2366B2

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2366B2	#FFFFFF	#000000	##FFFFFF
##2366B2	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406CB5

Deuteranopia (green-blind)

#265FB0

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2366b2;
/* rgb */ color: rgb(35, 102, 178);
/* oklch */ color: oklch(50.9% 0.138 254.4);

Tailwind

colors: {
  custom: {
    50: '#7591c9',
    500: '#2366b2',
    950: '#000000',
  },
}

SCSS

$custom: #2366b2;
$custom-light: #7591c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2366b2",
  "rgb": {
    "r": 35,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 211.888,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50912,
    "c": 0.13758,
    "h": 254.4
  },
  "luminance": 0.13074
}

Semantic roles & 50–950 ramp

primary

#2366B2

secondary

#C99B68

accent

#993EEA

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2366B2

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

Preview Lab → · Contrast checker → · Palette generator →