#1F72A8#1F72A8

#1F72A8 is a mid, moderate cyan. Relative luminance 0.152; OKLCH L 53.0% C 0.114 H 242.7°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#1F72A8
RGB	rgb(31, 114, 168)
HSL	hsl(204, 69%, 39%)
HSV	hsv(204, 82%, 66%)
CMYK	cmyk(81.5%, 32.1%, 0%, 34.1%)
CIE-LAB	lab(45.84, -4.73, -35.71)
CIE-LCH	lch(45.84, 36.02, 262.45°)
OKLab	oklab(53.03% -0.0522 -0.1014)
OKLCH	oklch(53.03% 0.114 242.7)
XYZ	xyz(13.6475, 15.1514, 39.2434)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F72A8 #A8551F

analogous

#1FA89A #1F72A8 #1F2DA8

triadic

#1F72A8 #A81F72 #72A81F

tetradic

#1F72A8 #9A1FA8 #A8551F #2DA81F

square

#1F72A8 #9A1FA8 #A8551F #2DA81F

split-complementary

#1F72A8 #A81F2D #A89A1F

monochromatic

#0C2C41 #154F74 #1F72A8 #2C94D8 #60AEE2

Accessibility & contrast

On white

5.21

#1F72A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#1F72A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F72A8

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F72A8	#FFFFFF	#000000	##FFFFFF
##1F72A8	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5973AA

Deuteranopia (green-blind)

#4667A7

Tritanopia (blue-blind)

#007F85

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #1f72a8;
/* rgb */ color: rgb(31, 114, 168);
/* oklch */ color: oklch(53.0% 0.114 242.7);

Tailwind

colors: {
  custom: {
    50: '#729ac2',
    500: '#1f72a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f72a8;
$custom-light: #729ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f72a8",
  "rgb": {
    "r": 31,
    "g": 114,
    "b": 168
  },
  "hsl": {
    "h": 203.65,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.53033,
    "c": 0.11403,
    "h": 242.7
  },
  "luminance": 0.15153
}

Semantic roles & 50–950 ramp

primary

#1F72A8

secondary

#C6865D

accent

#813CEC

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F72A8

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

Preview Lab → · Contrast checker → · Palette generator →