#1780A1#1780A1

#1780A1 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.0% C 0.101 H 225.5°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#1780A1
RGB	rgb(23, 128, 161)
HSL	hsl(194, 75%, 36%)
HSV	hsv(194, 86%, 63%)
CMYK	cmyk(85.7%, 20.5%, 0%, 36.9%)
CIE-LAB	lab(49.73, -16.13, -25.56)
CIE-LCH	lch(49.73, 30.22, 237.75°)
OKLab	oklab(55.98% -0.0707 -0.0718)
OKLCH	oklch(55.98% 0.101 225.5)
XYZ	xyz(14.5028, 18.1919, 36.4583)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1780A1 #A13817

analogous

#17A17D #1780A1 #173BA1

triadic

#1780A1 #A11780 #80A117

tetradic

#1780A1 #7D17A1 #A13817 #3BA117

square

#1780A1 #7D17A1 #A13817 #3BA117

split-complementary

#1780A1 #A1173B #A17D17

monochromatic

#082B36 #0F556B #1780A1 #1FABD7 #4DC1E6

Accessibility & contrast

On white

4.53

#1780A1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#1780A1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1780A1

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1780A1	#FFFFFF	#000000	##000000
##1780A1	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7DA3

Deuteranopia (green-blind)

#5C71A1

Tritanopia (blue-blind)

#008A8B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #1780a1;
/* rgb */ color: rgb(23, 128, 161);
/* oklch */ color: oklch(56.0% 0.101 225.5);

Tailwind

colors: {
  custom: {
    50: '#6fa5bd',
    500: '#1780a1',
    950: '#000000',
  },
}

SCSS

$custom: #1780a1;
$custom-light: #6fa5bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1780a1",
  "rgb": {
    "r": 23,
    "g": 128,
    "b": 161
  },
  "hsl": {
    "h": 194.348,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55983,
    "c": 0.10077,
    "h": 225.5
  },
  "luminance": 0.18194
}

Semantic roles & 50–950 ramp

primary

#1780A1

secondary

#C76A4C

accent

#6336F2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #1780A1

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

Preview Lab → · Contrast checker → · Palette generator →