#1B778B#1B778B

#1B778B is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 52.7% C 0.086 H 216.4°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B778B
RGB	rgb(27, 119, 139)
HSL	hsl(191, 67%, 33%)
HSV	hsv(191, 81%, 55%)
CMYK	cmyk(80.6%, 14.4%, 0%, 45.5%)
CIE-LAB	lab(46.03, -18.59, -18.32)
CIE-LCH	lch(46.03, 26.10, 224.59°)
OKLab	oklab(52.73% -0.0694 -0.0512)
OKLCH	oklch(52.73% 0.086 216.4)
XYZ	xyz(11.7070, 15.2893, 26.7552)
Luminance	0.1529 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B778B #8B2F1B

analogous

#1B8B67 #1B778B #1B3F8B

triadic

#1B778B #8B1B77 #778B1B

tetradic

#1B778B #671B8B #8B2F1B #3F8B1B

square

#1B778B #671B8B #8B2F1B #3F8B1B

split-complementary

#1B778B #8B1B3F #8B671B

monochromatic

#071F25 #114B58 #1B778B #25A3BE #45C0DB

Accessibility & contrast

On white

5.17

#1B778B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#1B778B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B778B

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B778B	#FFFFFF	#000000	##FFFFFF
##1B778B	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A738C

Deuteranopia (green-blind)

#5B688B

Tritanopia (blue-blind)

#007E7D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #1b778b;
/* rgb */ color: rgb(27, 119, 139);
/* oklch */ color: oklch(52.7% 0.086 216.4);

Tailwind

colors: {
  custom: {
    50: '#6c9ead',
    500: '#1b778b',
    950: '#000000',
  },
}

SCSS

$custom: #1b778b;
$custom-light: #6c9ead;
$custom-dark: #000000;

JSON

{
  "hex": "#1b778b",
  "rgb": {
    "r": 27,
    "g": 119,
    "b": 139
  },
  "hsl": {
    "h": 190.714,
    "s": 67.47,
    "l": 32.549
  },
  "oklch": {
    "l": 0.52729,
    "c": 0.08624,
    "h": 216.4
  },
  "luminance": 0.15291
}

Semantic roles & 50–950 ramp

primary

#1B778B

secondary

#BC5B45

accent

#5C3DEA

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1B778B

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

Preview Lab → · Contrast checker → · Palette generator →