#1F77A6#1F77A6

#1F77A6 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.1% C 0.108 H 237.8°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#1F77A6
RGB	rgb(31, 119, 166)
HSL	hsl(201, 69%, 39%)
HSV	hsv(201, 81%, 65%)
CMYK	cmyk(81.3%, 28.3%, 0%, 34.9%)
CIE-LAB	lab(47.28, -8.45, -32.27)
CIE-LCH	lch(47.28, 33.36, 255.33°)
OKLab	oklab(54.14% -0.0575 -0.0913)
OKLCH	oklch(54.14% 0.108 237.8)
XYZ	xyz(14.0421, 16.2364, 38.4629)
Luminance	0.1624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F77A6 #A64E1F

analogous

#1FA691 #1F77A6 #1F33A6

triadic

#1F77A6 #A61F77 #77A61F

tetradic

#1F77A6 #911FA6 #A64E1F #33A61F

square

#1F77A6 #911FA6 #A64E1F #33A61F

split-complementary

#1F77A6 #A61F33 #A6911F

monochromatic

#0C2D3F #155272 #1F77A6 #2B9BD7 #5EB4E1

Accessibility & contrast

On white

4.94

#1F77A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#1F77A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F77A6

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F77A6	#FFFFFF	#000000	##FFFFFF
##1F77A6	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6077A8

Deuteranopia (green-blind)

#4E6BA5

Tritanopia (blue-blind)

#008387

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1f77a6;
/* rgb */ color: rgb(31, 119, 166);
/* oklch */ color: oklch(54.1% 0.108 237.8);

Tailwind

colors: {
  custom: {
    50: '#719ec0',
    500: '#1f77a6',
    950: '#000000',
  },
}

SCSS

$custom: #1f77a6;
$custom-light: #719ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f77a6",
  "rgb": {
    "r": 31,
    "g": 119,
    "b": 166
  },
  "hsl": {
    "h": 200.889,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.54144,
    "c": 0.10791,
    "h": 237.8
  },
  "luminance": 0.16238
}

Semantic roles & 50–950 ramp

primary

#1F77A6

secondary

#C5805B

accent

#793CEB

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F77A6

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

Preview Lab → · Contrast checker → · Palette generator →