#2663B0#2663B0

#2663B0 is a mid, vivid cyan. Relative luminance 0.125; OKLCH L 50.2% C 0.137 H 256.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#2663B0
RGB	rgb(38, 99, 176)
HSL	hsl(213, 64%, 42%)
HSV	hsv(213, 78%, 69%)
CMYK	cmyk(78.4%, 43.8%, 0%, 31%)
CIE-LAB	lab(41.95, 8.45, -46.57)
CIE-LCH	lch(41.95, 47.33, 280.28°)
OKLab	oklab(50.18% -0.0332 -0.1334)
OKLCH	oklch(50.18% 0.137 256)
XYZ	xyz(13.0947, 12.4688, 42.7825)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2663B0 #B07326

analogous

#26A8B0 #2663B0 #2E26B0

triadic

#2663B0 #B02663 #63B026

tetradic

#2663B0 #B026A8 #B07326 #26B02E

square

#2663B0 #B026A8 #B07326 #26B02E

split-complementary

#2663B0 #B02E26 #A8B026

monochromatic

#102A4B #1B477E #2663B0 #3E81D5 #70A2E0

Accessibility & contrast

On white

6.01

#2663B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#2663B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663B0

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2663B0	#FFFFFF	#000000	##FFFFFF
##2663B0	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6AB3

Deuteranopia (green-blind)

#215DAE

Tritanopia (blue-blind)

#007581

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #2663b0;
/* rgb */ color: rgb(38, 99, 176);
/* oklch */ color: oklch(50.2% 0.137 256.0);

Tailwind

colors: {
  custom: {
    50: '#758ec8',
    500: '#2663b0',
    950: '#000000',
  },
}

SCSS

$custom: #2663b0;
$custom-light: #758ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#2663b0",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 176
  },
  "hsl": {
    "h": 213.478,
    "s": 64.486,
    "l": 41.961
  },
  "oklch": {
    "l": 0.50181,
    "c": 0.13746,
    "h": 256
  },
  "luminance": 0.1247
}

Semantic roles & 50–950 ramp

primary

#2663B0

secondary

#C79E6B

accent

#9E40E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2663B0

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

Preview Lab → · Contrast checker → · Palette generator →