#177EB4#177EB4

#177EB4 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.5% C 0.120 H 238.8°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#177EB4
RGB	rgb(23, 126, 180)
HSL	hsl(201, 77%, 40%)
HSV	hsv(201, 87%, 71%)
CMYK	cmyk(87.2%, 30%, 0%, 29.4%)
CIE-LAB	lab(49.97, -8.01, -36.19)
CIE-LCH	lch(49.97, 37.06, 257.52°)
OKLab	oklab(56.47% -0.0621 -0.1026)
OKLCH	oklch(56.47% 0.12 238.8)
XYZ	xyz(16.0491, 18.3971, 45.8763)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177EB4 #B44D17

analogous

#17B49C #177EB4 #172FB4

triadic

#177EB4 #B4177E #7EB417

tetradic

#177EB4 #9C17B4 #B44D17 #2FB417

square

#177EB4 #9C17B4 #B44D17 #2FB417

split-complementary

#177EB4 #B4172F #B49C17

monochromatic

#093247 #10587E #177EB4 #25A2E3 #5BB9EA

Accessibility & contrast

On white

4.49

#177EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#177EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #177EB4

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177EB4	#FFFFFF	#000000	##000000
##177EB4	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB6

Deuteranopia (green-blind)

#4F71B3

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #177eb4;
/* rgb */ color: rgb(23, 126, 180);
/* oklch */ color: oklch(56.5% 0.120 238.8);

Tailwind

colors: {
  custom: {
    50: '#73a3ca',
    500: '#177eb4',
    950: '#000000',
  },
}

SCSS

$custom: #177eb4;
$custom-light: #73a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#177eb4",
  "rgb": {
    "r": 23,
    "g": 126,
    "b": 180
  },
  "hsl": {
    "h": 200.637,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.56465,
    "c": 0.11994,
    "h": 238.8
  },
  "luminance": 0.18399
}

Semantic roles & 50–950 ramp

primary

#177EB4

secondary

#CE8159

accent

#7634F4

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #177EB4

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

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