#177FB4#177FB4

#177FB4 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.7% C 0.119 H 238.1°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#177FB4
RGB	rgb(23, 127, 180)
HSL	hsl(200, 77%, 40%)
HSV	hsv(200, 87%, 71%)
CMYK	cmyk(87.2%, 29.4%, 0%, 29.4%)
CIE-LAB	lab(50.28, -8.59, -35.71)
CIE-LCH	lch(50.28, 36.73, 256.47°)
OKLab	oklab(56.71% -0.063 -0.1012)
OKLCH	oklch(56.71% 0.119 238.1)
XYZ	xyz(16.1776, 18.6541, 45.9191)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177FB4 #B44C17

analogous

#17B49B #177FB4 #1730B4

triadic

#177FB4 #B4177F #7FB417

tetradic

#177FB4 #9B17B4 #B44C17 #30B417

square

#177FB4 #9B17B4 #B44C17 #30B417

split-complementary

#177FB4 #B41730 #B49B17

monochromatic

#093247 #10597E #177FB4 #25A3E3 #5BBAEA

Accessibility & contrast

On white

4.44

#177FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#177FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #177FB4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177FB4	#FFFFFF	#000000	##000000
##177FB4	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657FB6

Deuteranopia (green-blind)

#5172B3

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #177fb4;
/* rgb */ color: rgb(23, 127, 180);
/* oklch */ color: oklch(56.7% 0.119 238.1);

Tailwind

colors: {
  custom: {
    50: '#73a4ca',
    500: '#177fb4',
    950: '#000000',
  },
}

SCSS

$custom: #177fb4;
$custom-light: #73a4ca;
$custom-dark: #000000;

JSON

{
  "hex": "#177fb4",
  "rgb": {
    "r": 23,
    "g": 127,
    "b": 180
  },
  "hsl": {
    "h": 200.255,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.56708,
    "c": 0.1192,
    "h": 238.1
  },
  "luminance": 0.18656
}

Semantic roles & 50–950 ramp

primary

#177FB4

secondary

#CE8059

accent

#7534F4

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #177FB4

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

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