#3188B2#3188B2

#3188B2 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.4% C 0.103 H 233.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3188B2
RGB	rgb(49, 136, 178)
HSL	hsl(200, 57%, 45%)
HSV	hsv(200, 72%, 70%)
CMYK	cmyk(72.5%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.46, -11.73, -29.54)
CIE-LCH	lch(53.46, 31.79, 248.34°)
OKLab	oklab(59.36% -0.0614 -0.0831)
OKLCH	oklch(59.36% 0.103 233.5)
XYZ	xyz(18.1035, 21.4736, 45.3016)
Luminance	0.2148 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3188B2 #B25B31

analogous

#31B29C #3188B2 #3148B2

triadic

#3188B2 #B23188 #88B231

tetradic

#3188B2 #9C31B2 #B25B31 #48B231

square

#3188B2 #9C31B2 #B25B31 #48B231

split-complementary

#3188B2 #B23148 #B29C31

monochromatic

#173F52 #246382 #3188B2 #51A6CF #81BFDC

Accessibility & contrast

On white

3.97

#3188B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#3188B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3188B2

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3188B2	#FFFFFF	#000000	##000000
##3188B2	1.00	3.97	5.30	5.30
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B4

Deuteranopia (green-blind)

#627AB1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3188b2;
/* rgb */ color: rgb(49, 136, 178);
/* oklch */ color: oklch(59.4% 0.103 233.5);

Tailwind

colors: {
  custom: {
    50: '#7aaac9',
    500: '#3188b2',
    950: '#000000',
  },
}

SCSS

$custom: #3188b2;
$custom-light: #7aaac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3188b2",
  "rgb": {
    "r": 49,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 199.535,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.59363,
    "c": 0.10332,
    "h": 233.5
  },
  "luminance": 0.21476
}

Semantic roles & 50–950 ramp

primary

#3188B2

secondary

#C59279

accent

#7948E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #3188B2

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

Preview Lab → · Contrast checker → · Palette generator →