#3183B1#3183B1

#3183B1 is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.1% C 0.105 H 237.3°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3183B1
RGB	rgb(49, 131, 177)
HSL	hsl(202, 57%, 44%)
HSV	hsv(202, 72%, 69%)
CMYK	cmyk(72.3%, 26%, 0%, 30.6%)
CIE-LAB	lab(51.90, -9.24, -31.40)
CIE-LCH	lch(51.90, 32.73, 253.60°)
OKLab	oklab(58.11% -0.0567 -0.0885)
OKLCH	oklch(58.11% 0.105 237.3)
XYZ	xyz(17.3156, 20.0579, 44.5454)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3183B1 #B15F31

analogous

#31B19F #3183B1 #3143B1

triadic

#3183B1 #B13183 #83B131

tetradic

#3183B1 #9F31B1 #B15F31 #43B131

square

#3183B1 #9F31B1 #B15F31 #43B131

split-complementary

#3183B1 #B13143 #B19F31

monochromatic

#163C51 #246081 #3183B1 #51A1CF #80BBDC

Accessibility & contrast

On white

4.19

#3183B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#3183B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3183B1

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3183B1	#FFFFFF	#000000	##000000
##3183B1	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B3

Deuteranopia (green-blind)

#5C76B0

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3183b1;
/* rgb */ color: rgb(49, 131, 177);
/* oklch */ color: oklch(58.1% 0.105 237.3);

Tailwind

colors: {
  custom: {
    50: '#7aa7c8',
    500: '#3183b1',
    950: '#000000',
  },
}

SCSS

$custom: #3183b1;
$custom-light: #7aa7c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3183b1",
  "rgb": {
    "r": 49,
    "g": 131,
    "b": 177
  },
  "hsl": {
    "h": 201.563,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.58107,
    "c": 0.10512,
    "h": 237.3
  },
  "luminance": 0.2006
}

Semantic roles & 50–950 ramp

primary

#3183B1

secondary

#C59479

accent

#7F48E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #3183B1

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

Preview Lab → · Contrast checker → · Palette generator →