#1F72A5#1F72A5

#1F72A5 is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.9% C 0.111 H 241.3°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F72A5
RGB	rgb(31, 114, 165)
HSL	hsl(203, 68%, 38%)
HSV	hsv(203, 81%, 65%)
CMYK	cmyk(81.2%, 30.9%, 0%, 35.3%)
CIE-LAB	lab(45.69, -5.86, -34.19)
CIE-LCH	lch(45.69, 34.69, 260.27°)
OKLab	oklab(52.86% -0.0532 -0.0969)
OKLCH	oklch(52.86% 0.111 241.3)
XYZ	xyz(13.3712, 15.0409, 37.7885)
Luminance	0.1504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F72A5 #A5521F

analogous

#1FA595 #1F72A5 #1F2FA5

triadic

#1F72A5 #A51F72 #72A51F

tetradic

#1F72A5 #951FA5 #A5521F #2FA51F

square

#1F72A5 #951FA5 #A5521F #2FA51F

split-complementary

#1F72A5 #A51F2F #A5951F

monochromatic

#0C2B3E #154E71 #1F72A5 #2A95D7 #5EAFE1

Accessibility & contrast

On white

5.24

#1F72A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#1F72A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F72A5

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F72A5	#FFFFFF	#000000	##FFFFFF
##1F72A5	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A73A7

Deuteranopia (green-blind)

#4867A4

Tritanopia (blue-blind)

#007F84

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1f72a5;
/* rgb */ color: rgb(31, 114, 165);
/* oklch */ color: oklch(52.9% 0.111 241.3);

Tailwind

colors: {
  custom: {
    50: '#719ac0',
    500: '#1f72a5',
    950: '#000000',
  },
}

SCSS

$custom: #1f72a5;
$custom-light: #719ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f72a5",
  "rgb": {
    "r": 31,
    "g": 114,
    "b": 165
  },
  "hsl": {
    "h": 202.836,
    "s": 68.367,
    "l": 38.431
  },
  "oklch": {
    "l": 0.52864,
    "c": 0.11056,
    "h": 241.3
  },
  "luminance": 0.15043
}

Semantic roles & 50–950 ramp

primary

#1F72A5

secondary

#C5835B

accent

#7F3DEB

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #1F72A5

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

Preview Lab → · Contrast checker → · Palette generator →