#1F819D#1F819D

#1F819D is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.2% C 0.095 H 222.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#1F819D
RGB	rgb(31, 129, 157)
HSL	hsl(193, 67%, 37%)
HSV	hsv(193, 80%, 62%)
CMYK	cmyk(80.3%, 17.8%, 0%, 38.4%)
CIE-LAB	lab(50.01, -17.36, -22.79)
CIE-LCH	lch(50.01, 28.64, 232.70°)
OKLab	oklab(56.19% -0.0705 -0.0638)
OKLCH	oklch(56.19% 0.095 222.1)
XYZ	xyz(14.4986, 18.4243, 34.6839)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F819D #9D3B1F

analogous

#1F9D7A #1F819D #1F429D

triadic

#1F819D #9D1F81 #819D1F

tetradic

#1F819D #7A1F9D #9D3B1F #429D1F

square

#1F819D #7A1F9D #9D3B1F #429D1F

split-complementary

#1F819D #9D1F42 #9D7A1F

monochromatic

#0B2D37 #15576A #1F819D #29ABD0 #58C0DE

Accessibility & contrast

On white

4.48

#1F819D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#1F819D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F819D

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F819D	#FFFFFF	#000000	##000000
##1F819D	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717E9E

Deuteranopia (green-blind)

#60729D

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #1f819d;
/* rgb */ color: rgb(31, 129, 157);
/* oklch */ color: oklch(56.2% 0.095 222.1);

Tailwind

colors: {
  custom: {
    50: '#71a5ba',
    500: '#1f819d',
    950: '#000000',
  },
}

SCSS

$custom: #1f819d;
$custom-light: #71a5ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f819d",
  "rgb": {
    "r": 31,
    "g": 129,
    "b": 157
  },
  "hsl": {
    "h": 193.333,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.56189,
    "c": 0.09515,
    "h": 222.1
  },
  "luminance": 0.18426
}

Semantic roles & 50–950 ramp

primary

#1F819D

secondary

#C26E56

accent

#643EEA

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1F819D

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

Preview Lab → · Contrast checker → · Palette generator →