#1F77A9#1F77A9

#1F77A9 is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.3% C 0.111 H 239.4°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#1F77A9
RGB	rgb(31, 119, 169)
HSL	hsl(202, 69%, 39%)
HSV	hsv(202, 82%, 66%)
CMYK	cmyk(81.7%, 29.6%, 0%, 33.7%)
CIE-LAB	lab(47.43, -7.34, -33.80)
CIE-LCH	lch(47.43, 34.58, 257.75°)
OKLab	oklab(54.31% -0.0565 -0.0957)
OKLCH	oklch(54.31% 0.111 239.4)
XYZ	xyz(14.3205, 16.3478, 39.9291)
Luminance	0.1635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F77A9 #A9511F

analogous

#1FA996 #1F77A9 #1F32A9

triadic

#1F77A9 #A91F77 #77A91F

tetradic

#1F77A9 #961FA9 #A9511F #32A91F

square

#1F77A9 #961FA9 #A9511F #32A91F

split-complementary

#1F77A9 #A91F32 #A9961F

monochromatic

#0C2E42 #165375 #1F77A9 #2D9AD8 #60B3E2

Accessibility & contrast

On white

4.92

#1F77A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#1F77A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F77A9

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F77A9	#FFFFFF	#000000	##FFFFFF
##1F77A9	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F77AB

Deuteranopia (green-blind)

#4D6BA8

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #1f77a9;
/* rgb */ color: rgb(31, 119, 169);
/* oklch */ color: oklch(54.3% 0.111 239.4);

Tailwind

colors: {
  custom: {
    50: '#729ec3',
    500: '#1f77a9',
    950: '#000000',
  },
}

SCSS

$custom: #1f77a9;
$custom-light: #729ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f77a9",
  "rgb": {
    "r": 31,
    "g": 119,
    "b": 169
  },
  "hsl": {
    "h": 201.739,
    "s": 69,
    "l": 39.216
  },
  "oklch": {
    "l": 0.54306,
    "c": 0.11117,
    "h": 239.4
  },
  "luminance": 0.1635
}

Semantic roles & 50–950 ramp

primary

#1F77A9

secondary

#C7835D

accent

#7C3CEC

background

#F7F9FC

surface

#EDF2F8

border

#C8CCD1

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F77A9

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

Preview Lab → · Contrast checker → · Palette generator →