#1F7399#1F7399

#1F7399 is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.5% C 0.097 H 233.1°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F7399
RGB	rgb(31, 115, 153)
HSL	hsl(199, 66%, 36%)
HSV	hsv(199, 80%, 60%)
CMYK	cmyk(79.7%, 24.8%, 0%, 40%)
CIE-LAB	lab(45.43, -10.90, -27.53)
CIE-LCH	lch(45.43, 29.61, 248.40°)
OKLab	oklab(52.47% -0.0582 -0.0776)
OKLCH	oklch(52.47% 0.097 233.1)
XYZ	xyz(12.4433, 14.8512, 32.3416)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F7399 #99451F

analogous

#1F9982 #1F7399 #1F3699

triadic

#1F7399 #991F73 #73991F

tetradic

#1F7399 #821F99 #99451F #36991F

square

#1F7399 #821F99 #99451F #36991F

split-complementary

#1F7399 #991F36 #99821F

monochromatic

#0A2633 #154D66 #1F7399 #2999CC #56B3DD

Accessibility & contrast

On white

5.29

#1F7399 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#1F7399 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F7399

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F7399	#FFFFFF	#000000	##FFFFFF
##1F7399	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60729B

Deuteranopia (green-blind)

#506698

Tritanopia (blue-blind)

#007D80

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1f7399;
/* rgb */ color: rgb(31, 115, 153);
/* oklch */ color: oklch(52.5% 0.097 233.1);

Tailwind

colors: {
  custom: {
    50: '#6f9bb7',
    500: '#1f7399',
    950: '#000000',
  },
}

SCSS

$custom: #1f7399;
$custom-light: #6f9bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f7399",
  "rgb": {
    "r": 31,
    "g": 115,
    "b": 153
  },
  "hsl": {
    "h": 198.689,
    "s": 66.304,
    "l": 36.078
  },
  "oklch": {
    "l": 0.52469,
    "c": 0.09702,
    "h": 233.1
  },
  "luminance": 0.14853
}

Semantic roles & 50–950 ramp

primary

#1F7399

secondary

#C07554

accent

#743FE9

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#080E11

muted

#7B7E80

Preview Lab

Preview with #1F7399

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

Preview Lab → · Contrast checker → · Palette generator →