#2663A5#2663A5

#2663A5 is a mid, vivid cyan. Relative luminance 0.121; OKLCH L 49.5% C 0.123 H 253.1°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#2663A5
RGB	rgb(38, 99, 165)
HSL	hsl(211, 63%, 40%)
HSV	hsv(211, 77%, 65%)
CMYK	cmyk(77%, 40%, 0%, 35.3%)
CIE-LAB	lab(41.30, 4.21, -41.13)
CIE-LCH	lch(41.30, 41.34, 275.85°)
OKLab	oklab(49.46% -0.0357 -0.1174)
OKLCH	oklch(49.46% 0.123 253.1)
XYZ	xyz(12.0502, 12.0510, 37.2810)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2663A5 #A56826

analogous

#26A3A5 #2663A5 #2826A5

triadic

#2663A5 #A52663 #63A526

tetradic

#2663A5 #A526A3 #A56826 #26A528

square

#2663A5 #A526A3 #A56826 #26A528

split-complementary

#2663A5 #A52826 #A3A526

monochromatic

#0F2742 #1B4573 #2663A5 #3781D1 #69A0DC

Accessibility & contrast

On white

6.16

#2663A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#2663A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2663A5

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2663A5	#FFFFFF	#000000	##FFFFFF
##2663A5	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4468A8

Deuteranopia (green-blind)

#2F5CA4

Tritanopia (blue-blind)

#00737C

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #2663a5;
/* rgb */ color: rgb(38, 99, 165);
/* oklch */ color: oklch(49.5% 0.123 253.1);

Tailwind

colors: {
  custom: {
    50: '#738ec0',
    500: '#2663a5',
    950: '#000000',
  },
}

SCSS

$custom: #2663a5;
$custom-light: #738ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#2663a5",
  "rgb": {
    "r": 38,
    "g": 99,
    "b": 165
  },
  "hsl": {
    "h": 211.181,
    "s": 62.562,
    "l": 39.804
  },
  "oklch": {
    "l": 0.4946,
    "c": 0.12271,
    "h": 253.1
  },
  "luminance": 0.12052
}

Semantic roles & 50–950 ramp

primary

#2663A5

secondary

#C39564

accent

#9742E6

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #2663A5

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

Preview Lab → · Contrast checker → · Palette generator →