#1F77A7#1F77A7

#1F77A7 is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.2% C 0.109 H 238.3°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#1F77A7
RGB	rgb(31, 119, 167)
HSL	hsl(201, 69%, 39%)
HSV	hsv(201, 81%, 65%)
CMYK	cmyk(81.4%, 28.7%, 0%, 34.5%)
CIE-LAB	lab(47.33, -8.08, -32.78)
CIE-LCH	lch(47.33, 33.76, 256.16°)
OKLab	oklab(54.2% -0.0572 -0.0928)
OKLCH	oklch(54.2% 0.109 238.3)
XYZ	xyz(14.1342, 16.2732, 38.9478)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F77A7 #A74F1F

analogous

#1FA793 #1F77A7 #1F33A7

triadic

#1F77A7 #A71F77 #77A71F

tetradic

#1F77A7 #931FA7 #A74F1F #33A71F

square

#1F77A7 #931FA7 #A74F1F #33A71F

split-complementary

#1F77A7 #A71F33 #A7931F

monochromatic

#0C2D40 #155273 #1F77A7 #2B9BD8 #5FB3E1

Accessibility & contrast

On white

4.94

#1F77A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#1F77A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F77A7

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F77A7	#FFFFFF	#000000	##FFFFFF
##1F77A7	1.00	4.94	4.26	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6077A9

Deuteranopia (green-blind)

#4E6BA6

Tritanopia (blue-blind)

#008388

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1f77a7;
/* rgb */ color: rgb(31, 119, 167);
/* oklch */ color: oklch(54.2% 0.109 238.3);

Tailwind

colors: {
  custom: {
    50: '#729ec1',
    500: '#1f77a7',
    950: '#000000',
  },
}

SCSS

$custom: #1f77a7;
$custom-light: #729ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f77a7",
  "rgb": {
    "r": 31,
    "g": 119,
    "b": 167
  },
  "hsl": {
    "h": 201.176,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.54198,
    "c": 0.10898,
    "h": 238.3
  },
  "luminance": 0.16275
}

Semantic roles & 50–950 ramp

primary

#1F77A7

secondary

#C6815C

accent

#7A3CEC

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F77A7

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

Preview Lab → · Contrast checker → · Palette generator →