#175EB3#175EB3

#175EB3 is a mid, vivid cyan. Relative luminance 0.114; OKLCH L 48.9% C 0.151 H 256.1°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#175EB3
RGB	rgb(23, 94, 179)
HSL	hsl(213, 77%, 40%)
HSV	hsv(213, 87%, 70%)
CMYK	cmyk(87.2%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(40.31, 11.47, -50.98)
CIE-LCH	lch(40.31, 52.26, 282.68°)
OKLab	oklab(48.87% -0.0362 -0.1466)
OKLCH	oklch(48.87% 0.151 256.1)
XYZ	xyz(12.4897, 11.4406, 44.1891)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175EB3 #B36C17

analogous

#17ACB3 #175EB3 #1E17B3

triadic

#175EB3 #B3175E #5EB317

tetradic

#175EB3 #B317AC #B36C17 #17B31E

square

#175EB3 #B317AC #B36C17 #17B31E

split-complementary

#175EB3 #B31E17 #ACB317

monochromatic

#092547 #10427D #175EB3 #247BE3 #5B9CEA

Accessibility & contrast

On white

6.39

#175EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#175EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #175EB3

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175EB3	#FFFFFF	#000000	##FFFFFF
##175EB3	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D66B6

Deuteranopia (green-blind)

#0059B1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #175eb3;
/* rgb */ color: rgb(23, 94, 179);
/* oklch */ color: oklch(48.9% 0.151 256.1);

Tailwind

colors: {
  custom: {
    50: '#728bca',
    500: '#175eb3',
    950: '#000000',
  },
}

SCSS

$custom: #175eb3;
$custom-light: #728bca;
$custom-dark: #000000;

JSON

{
  "hex": "#175eb3",
  "rgb": {
    "r": 23,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 212.692,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.4887,
    "c": 0.15105,
    "h": 256.1
  },
  "luminance": 0.11442
}

Semantic roles & 50–950 ramp

primary

#175EB3

secondary

#CD9858

accent

#9D34F4

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #175EB3

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

Preview Lab → · Contrast checker → · Palette generator →