#3578A9#3578A9

#3578A9 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.102 H 243.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3578A9
RGB	rgb(53, 120, 169)
HSL	hsl(205, 52%, 44%)
HSV	hsv(205, 69%, 66%)
CMYK	cmyk(68.6%, 29%, 0%, 33.7%)
CIE-LAB	lab(48.33, -5.02, -32.35)
CIE-LCH	lch(48.33, 32.73, 261.18°)
OKLab	oklab(55.19% -0.0457 -0.0913)
OKLCH	oklch(55.19% 0.102 243.4)
XYZ	xyz(15.3434, 17.0528, 40.0113)
Luminance	0.1705 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578A9 #A96635

analogous

#35A9A0 #3578A9 #353EA9

triadic

#3578A9 #A93578 #78A935

tetradic

#3578A9 #A035A9 #A96635 #3EA935

square

#3578A9 #A035A9 #A96635 #3EA935

split-complementary

#3578A9 #A9353E #A9A035

monochromatic

#18364C #26577A #3578A9 #5297C9 #81B3D7

Accessibility & contrast

On white

4.76

#3578A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3578A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3578A9

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578A9	#FFFFFF	#000000	##FFFFFF
##3578A9	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6279AB

Deuteranopia (green-blind)

#526EA8

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3578a9;
/* rgb */ color: rgb(53, 120, 169);
/* oklch */ color: oklch(55.2% 0.102 243.4);

Tailwind

colors: {
  custom: {
    50: '#7a9ec3',
    500: '#3578a9',
    950: '#000000',
  },
}

SCSS

$custom: #3578a9;
$custom-light: #7a9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3578a9",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 169
  },
  "hsl": {
    "h": 205.345,
    "s": 52.252,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55187,
    "c": 0.10212,
    "h": 243.4
  },
  "luminance": 0.17054
}

Semantic roles & 50–950 ramp

primary

#3578A9

secondary

#C19779

accent

#894CDC

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3578A9

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

Preview Lab → · Contrast checker → · Palette generator →