#3174B5#3174B5

#3174B5 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 54.8% C 0.122 H 250.5°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3174B5
RGB	rgb(49, 116, 181)
HSL	hsl(210, 57%, 45%)
HSV	hsv(210, 73%, 71%)
CMYK	cmyk(72.9%, 35.9%, 0%, 29%)
CIE-LAB	lab(47.60, 1.09, -40.48)
CIE-LCH	lch(47.60, 40.49, 271.54°)
OKLab	oklab(54.77% -0.0408 -0.1151)
OKLCH	oklch(54.77% 0.122 250.5)
XYZ	xyz(15.8494, 16.4782, 46.0524)
Luminance	0.1648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3174B5 #B57231

analogous

#31B5B4 #3174B5 #3132B5

triadic

#3174B5 #B53174 #74B531

tetradic

#3174B5 #B431B5 #B57231 #32B531

square

#3174B5 #B431B5 #B57231 #32B531

split-complementary

#3174B5 #B53132 #B5B431

monochromatic

#173655 #245585 #3174B5 #5393D0 #83B1DD

Accessibility & contrast

On white

4.89

#3174B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3174B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3174B5

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3174B5	#FFFFFF	#000000	##FFFFFF
##3174B5	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5678B8

Deuteranopia (green-blind)

#436BB4

Tritanopia (blue-blind)

#00838C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3174b5;
/* rgb */ color: rgb(49, 116, 181);
/* oklch */ color: oklch(54.8% 0.122 250.5);

Tailwind

colors: {
  custom: {
    50: '#7a9bcb',
    500: '#3174b5',
    950: '#000000',
  },
}

SCSS

$custom: #3174b5;
$custom-light: #7a9bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3174b5",
  "rgb": {
    "r": 49,
    "g": 116,
    "b": 181
  },
  "hsl": {
    "h": 209.545,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.54771,
    "c": 0.12211,
    "h": 250.5
  },
  "luminance": 0.1648
}

Semantic roles & 50–950 ramp

primary

#3174B5

secondary

#C7A07B

accent

#9347E1

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3174B5

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

Preview Lab → · Contrast checker → · Palette generator →