#1F759B#1F759B

#1F759B is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.1% C 0.098 H 232.6°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#1F759B
RGB	rgb(31, 117, 155)
HSL	hsl(198, 67%, 36%)
HSV	hsv(198, 80%, 61%)
CMYK	cmyk(80%, 24.5%, 0%, 39.2%)
CIE-LAB	lab(46.15, -11.33, -27.59)
CIE-LCH	lch(46.15, 29.82, 247.68°)
OKLab	oklab(53.07% -0.0595 -0.0777)
OKLCH	oklch(53.07% 0.098 232.6)
XYZ	xyz(12.8404, 15.3789, 33.2957)
Luminance	0.1538 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F759B #9B451F

analogous

#1F9B83 #1F759B #1F379B

triadic

#1F759B #9B1F75 #759B1F

tetradic

#1F759B #831F9B #9B451F #379B1F

square

#1F759B #831F9B #9B451F #379B1F

split-complementary

#1F759B #9B1F37 #9B831F

monochromatic

#0B2835 #154F68 #1F759B #299BCE #57B4DD

Accessibility & contrast

On white

5.15

#1F759B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#1F759B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F759B

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F759B	#FFFFFF	#000000	##FFFFFF
##1F759B	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#62749D

Deuteranopia (green-blind)

#52689A

Tritanopia (blue-blind)

#007F82

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #1f759b;
/* rgb */ color: rgb(31, 117, 155);
/* oklch */ color: oklch(53.1% 0.098 232.6);

Tailwind

colors: {
  custom: {
    50: '#6f9cb8',
    500: '#1f759b',
    950: '#000000',
  },
}

SCSS

$custom: #1f759b;
$custom-light: #6f9cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f759b",
  "rgb": {
    "r": 31,
    "g": 117,
    "b": 155
  },
  "hsl": {
    "h": 198.387,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.53073,
    "c": 0.09789,
    "h": 232.6
  },
  "luminance": 0.1538
}

Semantic roles & 50–950 ramp

primary

#1F759B

secondary

#C17655

accent

#733EEA

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #1F759B

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

Preview Lab → · Contrast checker → · Palette generator →