#3580B6#3580B6

#3580B6 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.8% C 0.111 H 243.4°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3580B6
RGB	rgb(53, 128, 182)
HSL	hsl(205, 55%, 46%)
HSV	hsv(205, 71%, 71%)
CMYK	cmyk(70.9%, 29.7%, 0%, 28.6%)
CIE-LAB	lab(51.35, -5.16, -35.13)
CIE-LCH	lch(51.35, 35.51, 261.65°)
OKLab	oklab(57.78% -0.0498 -0.0993)
OKLCH	oklch(57.78% 0.111 243.4)
XYZ	xyz(17.6276, 19.5707, 47.0954)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580B6 #B66B35

analogous

#35B6AB #3580B6 #353FB6

triadic

#3580B6 #B63580 #80B635

tetradic

#3580B6 #AB35B6 #B66B35 #3FB635

square

#3580B6 #AB35B6 #B66B35 #3FB635

split-complementary

#3580B6 #B6353F #B6AB35

monochromatic

#193D57 #275F87 #3580B6 #599ECF #89BADD

Accessibility & contrast

On white

4.27

#3580B6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#3580B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580B6

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580B6	#FFFFFF	#000000	##000000
##3580B6	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6781B8

Deuteranopia (green-blind)

#5675B5

Tritanopia (blue-blind)

#008D93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3580b6;
/* rgb */ color: rgb(53, 128, 182);
/* oklch */ color: oklch(57.8% 0.111 243.4);

Tailwind

colors: {
  custom: {
    50: '#7ca4cc',
    500: '#3580b6',
    950: '#000000',
  },
}

SCSS

$custom: #3580b6;
$custom-light: #7ca4cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3580b6",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 182
  },
  "hsl": {
    "h": 205.116,
    "s": 54.894,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57777,
    "c": 0.11109,
    "h": 243.4
  },
  "luminance": 0.19573
}

Semantic roles & 50–950 ramp

primary

#3580B6

secondary

#C79E80

accent

#884ADE

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3580B6

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

Preview Lab → · Contrast checker → · Palette generator →