#3580B2#3580B2

#3580B2 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.107 H 241.4°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3580B2
RGB	rgb(53, 128, 178)
HSL	hsl(204, 54%, 45%)
HSV	hsv(204, 70%, 70%)
CMYK	cmyk(70.2%, 28.1%, 0%, 30.2%)
CIE-LAB	lab(51.16, -6.56, -33.12)
CIE-LCH	lch(51.16, 33.77, 258.79°)
OKLab	oklab(57.57% -0.0511 -0.0935)
OKLCH	oklch(57.57% 0.107 241.4)
XYZ	xyz(17.2202, 19.4077, 44.9494)
Luminance	0.1941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580B2 #B26735

analogous

#35B2A5 #3580B2 #3541B2

triadic

#3580B2 #B23580 #80B235

tetradic

#3580B2 #A535B2 #B26735 #41B235

square

#3580B2 #A535B2 #B26735 #41B235

split-complementary

#3580B2 #B23541 #B2A535

monochromatic

#193C54 #275E83 #3580B2 #579ECD #86B9DB

Accessibility & contrast

On white

4.30

#3580B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#3580B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580B2

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580B2	#FFFFFF	#000000	##000000
##3580B2	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6981B4

Deuteranopia (green-blind)

#5874B1

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3580b2;
/* rgb */ color: rgb(53, 128, 178);
/* oklch */ color: oklch(57.6% 0.107 241.4);

Tailwind

colors: {
  custom: {
    50: '#7ba4c9',
    500: '#3580b2',
    950: '#000000',
  },
}

SCSS

$custom: #3580b2;
$custom-light: #7ba4c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3580b2",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 178
  },
  "hsl": {
    "h": 204,
    "s": 54.113,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57567,
    "c": 0.10652,
    "h": 241.4
  },
  "luminance": 0.1941
}

Semantic roles & 50–950 ramp

primary

#3580B2

secondary

#C59A7E

accent

#854ADD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3580B2

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

Preview Lab → · Contrast checker → · Palette generator →