#1F729B#1F729B

#1F729B is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.3% C 0.100 H 235.4°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#1F729B
RGB	rgb(31, 114, 155)
HSL	hsl(200, 67%, 36%)
HSV	hsv(200, 80%, 61%)
CMYK	cmyk(80%, 26.5%, 0%, 39.2%)
CIE-LAB	lab(45.21, -9.58, -29.06)
CIE-LCH	lch(45.21, 30.60, 251.75°)
OKLab	oklab(52.32% -0.0565 -0.082)
OKLCH	oklch(52.32% 0.1 235.4)
XYZ	xyz(12.4964, 14.6910, 33.1810)
Luminance	0.1469 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F729B #9B481F

analogous

#1F9B86 #1F729B #1F349B

triadic

#1F729B #9B1F72 #729B1F

tetradic

#1F729B #861F9B #9B481F #349B1F

square

#1F729B #861F9B #9B481F #349B1F

split-complementary

#1F729B #9B1F34 #9B861F

monochromatic

#0B2735 #154C68 #1F729B #2998CE #57B1DD

Accessibility & contrast

On white

5.33

#1F729B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#1F729B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F729B

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F729B	#FFFFFF	#000000	##FFFFFF
##1F729B	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E719D

Deuteranopia (green-blind)

#4D669A

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #1f729b;
/* rgb */ color: rgb(31, 114, 155);
/* oklch */ color: oklch(52.3% 0.100 235.4);

Tailwind

colors: {
  custom: {
    50: '#6f9ab8',
    500: '#1f729b',
    950: '#000000',
  },
}

SCSS

$custom: #1f729b;
$custom-light: #6f9ab8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f729b",
  "rgb": {
    "r": 31,
    "g": 114,
    "b": 155
  },
  "hsl": {
    "h": 199.839,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.52323,
    "c": 0.09963,
    "h": 235.4
  },
  "luminance": 0.14692
}

Semantic roles & 50–950 ramp

primary

#1F729B

secondary

#C17955

accent

#773EEA

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #1F729B

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

Preview Lab → · Contrast checker → · Palette generator →