#2663BD#2663BD

#2663BD is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.1% C 0.155 H 258.5°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#2663BD
RGB	rgb(38, 99, 189)
HSL	hsl(216, 67%, 45%)
HSV	hsv(216, 80%, 74%)
CMYK	cmyk(79.9%, 47.6%, 0%, 25.9%)
CIE-LAB	lab(42.78, 13.47, -52.84)
CIE-LCH	lch(42.78, 54.53, 284.30°)
OKLab	oklab(51.08% -0.0308 -0.1519)
OKLCH	oklch(51.08% 0.155 258.5)
XYZ	xyz(14.4431, 13.0081, 49.8839)
Luminance	0.1301 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2663BD #BD8026

analogous

#26AEBD #2663BD #3526BD

triadic

#2663BD #BD2663 #63BD26

tetradic

#2663BD #BD26AE #BD8026 #26BD35

square

#2663BD #BD26AE #BD8026 #26BD35

split-complementary

#2663BD #BD3526 #AEBD26

monochromatic

#122E57 #1C488A #2663BD #4682DA #79A4E4

Accessibility & contrast

On white

5.83

#2663BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#2663BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663BD

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2663BD	#FFFFFF	#000000	##FFFFFF
##2663BD	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306CC0

Deuteranopia (green-blind)

#005FBB

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2663bd;
/* rgb */ color: rgb(38, 99, 189);
/* oklch */ color: oklch(51.1% 0.155 258.5);

Tailwind

colors: {
  custom: {
    50: '#788ed1',
    500: '#2663bd',
    950: '#000000',
  },
}

SCSS

$custom: #2663bd;
$custom-light: #788ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#2663bd",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 189
  },
  "hsl": {
    "h": 215.762,
    "s": 66.52,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51082,
    "c": 0.15495,
    "h": 258.5
  },
  "luminance": 0.1301
}

Semantic roles & 50–950 ramp

primary

#2663BD

secondary

#CCA873

accent

#A43EE9

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C14

muted

#7C7D82

Preview Lab

Preview with #2663BD

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

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