#175BB3#175BB3

#175BB3 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 48.2% C 0.155 H 257.3°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#175BB3
RGB	rgb(23, 91, 179)
HSL	hsl(214, 77%, 40%)
HSV	hsv(214, 87%, 70%)
CMYK	cmyk(87.2%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(39.44, 13.44, -52.39)
CIE-LCH	lch(39.44, 54.09, 284.39°)
OKLab	oklab(48.2% -0.0341 -0.1509)
OKLCH	oklch(48.2% 0.155 257.3)
XYZ	xyz(12.2281, 10.9174, 44.1019)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#175BB3 #B36F17

analogous

#17A9B3 #175BB3 #2117B3

triadic

#175BB3 #B3175B #5BB317

tetradic

#175BB3 #B317A9 #B36F17 #17B321

square

#175BB3 #B317A9 #B36F17 #17B321

split-complementary

#175BB3 #B32117 #A9B317

monochromatic

#092447 #103F7D #175BB3 #2477E3 #5B99EA

Accessibility & contrast

On white

6.60

#175BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#175BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #175BB3

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##175BB3	#FFFFFF	#000000	##FFFFFF
##175BB3	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #175bb3;
/* rgb */ color: rgb(23, 91, 179);
/* oklch */ color: oklch(48.2% 0.155 257.3);

Tailwind

colors: {
  custom: {
    50: '#7288ca',
    500: '#175bb3',
    950: '#000000',
  },
}

SCSS

$custom: #175bb3;
$custom-light: #7288ca;
$custom-dark: #000000;

JSON

{
  "hex": "#175bb3",
  "rgb": {
    "r": 23,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 213.846,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.48198,
    "c": 0.15465,
    "h": 257.3
  },
  "luminance": 0.10919
}

Semantic roles & 50–950 ramp

primary

#175BB3

secondary

#CD9A58

accent

#A034F4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #175BB3

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

Preview Lab → · Contrast checker → · Palette generator →