#1F73A0#1F73A0

#1F73A0 is a mid, moderate cyan. Relative luminance 0.151; OKLCH L 52.8% C 0.104 H 237.7°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#1F73A0
RGB	rgb(31, 115, 160)
HSL	hsl(201, 68%, 37%)
HSV	hsv(201, 81%, 63%)
CMYK	cmyk(80.6%, 28.1%, 0%, 37.3%)
CIE-LAB	lab(45.76, -8.32, -31.15)
CIE-LCH	lch(45.76, 32.24, 255.04°)
OKLab	oklab(52.84% -0.0558 -0.0881)
OKLCH	oklch(52.84% 0.104 237.7)
XYZ	xyz(13.0384, 15.0892, 35.4762)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F73A0 #A04C1F

analogous

#1FA08C #1F73A0 #1F33A0

triadic

#1F73A0 #A01F73 #73A01F

tetradic

#1F73A0 #8C1FA0 #A04C1F #33A01F

square

#1F73A0 #8C1FA0 #A04C1F #33A01F

split-complementary

#1F73A0 #A01F33 #A08C1F

monochromatic

#0B2939 #154E6D #1F73A0 #2998D3 #5AB1DF

Accessibility & contrast

On white

5.23

#1F73A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#1F73A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F73A0

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F73A0	#FFFFFF	#000000	##FFFFFF
##1F73A0	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D73A2

Deuteranopia (green-blind)

#4C679F

Tritanopia (blue-blind)

#007E83

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1f73a0;
/* rgb */ color: rgb(31, 115, 160);
/* oklch */ color: oklch(52.8% 0.104 237.7);

Tailwind

colors: {
  custom: {
    50: '#709bbc',
    500: '#1f73a0',
    950: '#000000',
  },
}

SCSS

$custom: #1f73a0;
$custom-light: #709bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f73a0",
  "rgb": {
    "r": 31,
    "g": 115,
    "b": 160
  },
  "hsl": {
    "h": 200.93,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.52837,
    "c": 0.10424,
    "h": 237.7
  },
  "luminance": 0.15091
}

Semantic roles & 50–950 ramp

primary

#1F73A0

secondary

#C37D58

accent

#7A3DEA

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F73A0

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

Preview Lab → · Contrast checker → · Palette generator →