#2663B5#2663B5

#2663B5 is a mid, vivid cyan. Relative luminance 0.127; OKLCH L 50.5% C 0.144 H 257.1°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#2663B5
RGB	rgb(38, 99, 181)
HSL	hsl(214, 65%, 43%)
HSV	hsv(214, 79%, 71%)
CMYK	cmyk(79%, 45.3%, 0%, 29%)
CIE-LAB	lab(42.26, 10.38, -49.00)
CIE-LCH	lch(42.26, 50.09, 281.96°)
OKLab	oklab(50.52% -0.0322 -0.1405)
OKLCH	oklch(50.52% 0.144 257.1)
XYZ	xyz(13.5986, 12.6703, 45.4360)
Luminance	0.1267 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2663B5 #B57826

analogous

#26AAB5 #2663B5 #3126B5

triadic

#2663B5 #B52663 #63B526

tetradic

#2663B5 #B526AA #B57826 #26B531

square

#2663B5 #B526AA #B57826 #26B531

split-complementary

#2663B5 #B53126 #AAB526

monochromatic

#112C50 #1B4782 #2663B5 #4181D7 #74A3E2

Accessibility & contrast

On white

5.94

#2663B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#2663B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663B5

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2663B5	#FFFFFF	#000000	##FFFFFF
##2663B5	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386BB8

Deuteranopia (green-blind)

#185EB3

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2663b5;
/* rgb */ color: rgb(38, 99, 181);
/* oklch */ color: oklch(50.5% 0.144 257.1);

Tailwind

colors: {
  custom: {
    50: '#768ecc',
    500: '#2663b5',
    950: '#000000',
  },
}

SCSS

$custom: #2663b5;
$custom-light: #768ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2663b5",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 181
  },
  "hsl": {
    "h": 214.406,
    "s": 65.297,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50522,
    "c": 0.1442,
    "h": 257.1
  },
  "luminance": 0.12672
}

Semantic roles & 50–950 ramp

primary

#2663B5

secondary

#C9A26E

accent

#A040E8

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2663B5

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

Preview Lab → · Contrast checker → · Palette generator →