#1B759F#1B759F

#1B759F is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.2% C 0.103 H 234.7°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B759F
RGB	rgb(27, 117, 159)
HSL	hsl(199, 71%, 36%)
HSV	hsv(199, 83%, 62%)
CMYK	cmyk(83%, 26.4%, 0%, 37.6%)
CIE-LAB	lab(46.25, -10.27, -29.79)
CIE-LCH	lch(46.25, 31.51, 250.98°)
OKLab	oklab(53.2% -0.0596 -0.0841)
OKLCH	oklch(53.2% 0.103 234.7)
XYZ	xyz(13.0688, 15.4572, 35.0889)
Luminance	0.1546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B759F #9F451B

analogous

#1B9F87 #1B759F #1B339F

triadic

#1B759F #9F1B75 #759F1B

tetradic

#1B759F #871B9F #9F451B #339F1B

square

#1B759F #871B9F #9F451B #339F1B

split-complementary

#1B759F #9F1B33 #9F871B

monochromatic

#092836 #124F6B #1B759F #249BD3 #53B4E2

Accessibility & contrast

On white

5.13

#1B759F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#1B759F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B759F

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B759F	#FFFFFF	#000000	##FFFFFF
##1B759F	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6074A1

Deuteranopia (green-blind)

#4F689E

Tritanopia (blue-blind)

#008083

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #1b759f;
/* rgb */ color: rgb(27, 117, 159);
/* oklch */ color: oklch(53.2% 0.103 234.7);

Tailwind

colors: {
  custom: {
    50: '#6f9cbb',
    500: '#1b759f',
    950: '#000000',
  },
}

SCSS

$custom: #1b759f;
$custom-light: #6f9cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b759f",
  "rgb": {
    "r": 27,
    "g": 117,
    "b": 159
  },
  "hsl": {
    "h": 199.091,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.53195,
    "c": 0.10312,
    "h": 234.7
  },
  "luminance": 0.15459
}

Semantic roles & 50–950 ramp

primary

#1B759F

secondary

#C57651

accent

#733AEE

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1B759F

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

Preview Lab → · Contrast checker → · Palette generator →