#2663B7#2663B7

#2663B7 is a mid, vivid cyan. Relative luminance 0.128; OKLCH L 50.7% C 0.147 H 257.5°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#2663B7
RGB	rgb(38, 99, 183)
HSL	hsl(215, 66%, 43%)
HSV	hsv(215, 79%, 72%)
CMYK	cmyk(79.2%, 45.9%, 0%, 28.2%)
CIE-LAB	lab(42.39, 11.15, -49.97)
CIE-LCH	lch(42.39, 51.20, 282.58°)
OKLab	oklab(50.66% -0.0319 -0.1434)
OKLCH	oklch(50.66% 0.147 257.5)
XYZ	xyz(13.8053, 12.7530, 46.5245)
Luminance	0.1275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2663B7 #B77A26

analogous

#26ABB7 #2663B7 #3226B7

triadic

#2663B7 #B72663 #63B726

tetradic

#2663B7 #B726AB #B77A26 #26B732

square

#2663B7 #B726AB #B77A26 #26B732

split-complementary

#2663B7 #B73226 #ABB726

monochromatic

#112C52 #1B4884 #2663B7 #4281D8 #75A3E2

Accessibility & contrast

On white

5.91

#2663B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#2663B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663B7

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2663B7	#FFFFFF	#000000	##FFFFFF
##2663B7	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366BBA

Deuteranopia (green-blind)

#135EB5

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2663b7;
/* rgb */ color: rgb(38, 99, 183);
/* oklch */ color: oklch(50.7% 0.147 257.5);

Tailwind

colors: {
  custom: {
    50: '#778ecd',
    500: '#2663b7',
    950: '#000000',
  },
}

SCSS

$custom: #2663b7;
$custom-light: #778ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#2663b7",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 183
  },
  "hsl": {
    "h": 214.759,
    "s": 65.611,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5066,
    "c": 0.14689,
    "h": 257.5
  },
  "luminance": 0.12755
}

Semantic roles & 50–950 ramp

primary

#2663B7

secondary

#CAA46F

accent

#A13FE9

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2663B7

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

Preview Lab → · Contrast checker → · Palette generator →