#1B66A0#1B66A0

#1B66A0 is a mid, moderate cyan. Relative luminance 0.123; OKLCH L 49.6% C 0.116 H 247.0°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B66A0
RGB	rgb(27, 102, 160)
HSL	hsl(206, 71%, 37%)
HSV	hsv(206, 83%, 63%)
CMYK	cmyk(83.1%, 36.2%, 0%, 37.3%)
CIE-LAB	lab(41.65, -0.84, -37.63)
CIE-LCH	lch(41.65, 37.64, 268.72°)
OKLab	oklab(49.56% -0.0454 -0.1072)
OKLCH	oklch(49.56% 0.116 247)
XYZ	xyz(11.5461, 12.2724, 35.0112)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B66A0 #A0551B

analogous

#1BA098 #1B66A0 #1B24A0

triadic

#1B66A0 #A01B66 #66A01B

tetradic

#1B66A0 #981BA0 #A0551B #24A01B

square

#1B66A0 #981BA0 #A0551B #24A01B

split-complementary

#1B66A0 #A01B24 #A0981B

monochromatic

#092337 #12456C #1B66A0 #2487D4 #53A4E2

Accessibility & contrast

On white

6.08

#1B66A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#1B66A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B66A0

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B66A0	#FFFFFF	#000000	##FFFFFF
##1B66A0	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B69A2

Deuteranopia (green-blind)

#375D9F

Tritanopia (blue-blind)

#00747B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #1b66a0;
/* rgb */ color: rgb(27, 102, 160);
/* oklch */ color: oklch(49.6% 0.116 247.0);

Tailwind

colors: {
  custom: {
    50: '#6f91bc',
    500: '#1b66a0',
    950: '#000000',
  },
}

SCSS

$custom: #1b66a0;
$custom-light: #6f91bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b66a0",
  "rgb": {
    "r": 27,
    "g": 102,
    "b": 160
  },
  "hsl": {
    "h": 206.165,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.49561,
    "c": 0.11644,
    "h": 247
  },
  "luminance": 0.12274
}

Semantic roles & 50–950 ramp

primary

#1B66A0

secondary

#C58452

accent

#883AEE

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1B66A0

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

Preview Lab → · Contrast checker → · Palette generator →