#3583B3#3583B3

#3583B3 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.106 H 239.4°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3583B3
RGB	rgb(53, 131, 179)
HSL	hsl(203, 54%, 45%)
HSV	hsv(203, 70%, 70%)
CMYK	cmyk(70.4%, 26.8%, 0%, 29.8%)
CIE-LAB	lab(52.11, -7.95, -32.22)
CIE-LCH	lch(52.11, 33.18, 256.13°)
OKLab	oklab(58.33% -0.0538 -0.0908)
OKLCH	oklch(58.33% 0.106 239.4)
XYZ	xyz(17.7180, 20.2422, 45.6124)
Luminance	0.2024 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3583B3 #B36535

analogous

#35B3A4 #3583B3 #3544B3

triadic

#3583B3 #B33583 #83B335

tetradic

#3583B3 #A435B3 #B36535 #44B335

square

#3583B3 #A435B3 #B36535 #44B335

split-complementary

#3583B3 #B33544 #B3A435

monochromatic

#193E55 #276084 #3583B3 #58A1CD #87BBDB

Accessibility & contrast

On white

4.16

#3583B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3583B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3583B3

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3583B3	#FFFFFF	#000000	##000000
##3583B3	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B5

Deuteranopia (green-blind)

#5B77B2

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3583b3;
/* rgb */ color: rgb(53, 131, 179);
/* oklch */ color: oklch(58.3% 0.106 239.4);

Tailwind

colors: {
  custom: {
    50: '#7ca6ca',
    500: '#3583b3',
    950: '#000000',
  },
}

SCSS

$custom: #3583b3;
$custom-light: #7ca6ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3583b3",
  "rgb": {
    "r": 53,
    "g": 131,
    "b": 179
  },
  "hsl": {
    "h": 202.857,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.58334,
    "c": 0.10555,
    "h": 239.4
  },
  "luminance": 0.20244
}

Semantic roles & 50–950 ramp

primary

#3583B3

secondary

#C5997F

accent

#824ADE

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3583B3

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

Preview Lab → · Contrast checker → · Palette generator →