#1B7E9B#1B7E9B

#1B7E9B is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.096 H 223.1°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B7E9B
RGB	rgb(27, 126, 155)
HSL	hsl(194, 70%, 36%)
HSV	hsv(194, 83%, 61%)
CMYK	cmyk(82.6%, 18.7%, 0%, 39.2%)
CIE-LAB	lab(48.91, -16.81, -23.32)
CIE-LCH	lch(48.91, 28.75, 234.21°)
OKLab	oklab(55.26% -0.0698 -0.0654)
OKLCH	oklch(55.26% 0.096 223.1)
XYZ	xyz(13.8268, 17.5195, 33.6569)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B7E9B #9B381B

analogous

#1B9B78 #1B7E9B #1B3E9B

triadic

#1B7E9B #9B1B7E #7E9B1B

tetradic

#1B7E9B #781B9B #9B381B #3E9B1B

square

#1B7E9B #781B9B #9B381B #3E9B1B

split-complementary

#1B7E9B #9B1B3E #9B781B

monochromatic

#092933 #125467 #1B7E9B #24A8CF #50C0E0

Accessibility & contrast

On white

4.66

#1B7E9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#1B7E9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #1B7E9B

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B7E9B	#FFFFFF	#000000	##FFFFFF
##1B7E9B	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7B9C

Deuteranopia (green-blind)

#5D6F9B

Tritanopia (blue-blind)

#008787

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #1b7e9b;
/* rgb */ color: rgb(27, 126, 155);
/* oklch */ color: oklch(55.3% 0.096 223.1);

Tailwind

colors: {
  custom: {
    50: '#6fa3b8',
    500: '#1b7e9b',
    950: '#000000',
  },
}

SCSS

$custom: #1b7e9b;
$custom-light: #6fa3b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1b7e9b",
  "rgb": {
    "r": 27,
    "g": 126,
    "b": 155
  },
  "hsl": {
    "h": 193.594,
    "s": 70.33,
    "l": 35.686
  },
  "oklch": {
    "l": 0.5526,
    "c": 0.09567,
    "h": 223.1
  },
  "luminance": 0.17521
}

Semantic roles & 50–950 ramp

primary

#1B7E9B

secondary

#C3694F

accent

#633BED

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1B7E9B

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

Preview Lab → · Contrast checker → · Palette generator →