#1F738F#1F738F

#1F738F is a mid, moderate cyan. Relative luminance 0.145; OKLCH L 52.0% C 0.088 H 225.2°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F738F
RGB	rgb(31, 115, 143)
HSL	hsl(195, 64%, 34%)
HSV	hsv(195, 78%, 56%)
CMYK	cmyk(78.3%, 19.6%, 0%, 43.9%)
CIE-LAB	lab(44.99, -14.51, -22.29)
CIE-LCH	lch(44.99, 26.59, 236.94°)
OKLab	oklab(51.97% -0.0621 -0.0625)
OKLCH	oklch(51.97% 0.088 225.2)
XYZ	xyz(11.6517, 14.5345, 28.1726)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F738F #8F3B1F

analogous

#1F8F73 #1F738F #1F3B8F

triadic

#1F738F #8F1F73 #738F1F

tetradic

#1F738F #731F8F #8F3B1F #3B8F1F

square

#1F738F #731F8F #8F3B1F #3B8F1F

split-complementary

#1F738F #8F1F3B #8F731F

monochromatic

#09222A #144B5D #1F738F #2A9BC1 #4FB7D9

Accessibility & contrast

On white

5.37

#1F738F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#1F738F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F738F

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F738F	#FFFFFF	#000000	##FFFFFF
##1F738F	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647190

Deuteranopia (green-blind)

#55668F

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1f738f;
/* rgb */ color: rgb(31, 115, 143);
/* oklch */ color: oklch(52.0% 0.088 225.2);

Tailwind

colors: {
  custom: {
    50: '#6d9bb0',
    500: '#1f738f',
    950: '#000000',
  },
}

SCSS

$custom: #1f738f;
$custom-light: #6d9bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1f738f",
  "rgb": {
    "r": 31,
    "g": 115,
    "b": 143
  },
  "hsl": {
    "h": 195,
    "s": 64.368,
    "l": 34.118
  },
  "oklch": {
    "l": 0.51973,
    "c": 0.08808,
    "h": 225.2
  },
  "luminance": 0.14536
}

Semantic roles & 50–950 ramp

primary

#1F738F

secondary

#BC694E

accent

#6A40E7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1F738F

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

Preview Lab → · Contrast checker → · Palette generator →