#1F738D#1F738D

#1F738D is a mid, moderate cyan. Relative luminance 0.145; OKLCH L 51.9% C 0.087 H 223.4°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F738D
RGB	rgb(31, 115, 141)
HSL	hsl(194, 64%, 34%)
HSV	hsv(194, 78%, 55%)
CMYK	cmyk(78%, 18.4%, 0%, 44.7%)
CIE-LAB	lab(44.91, -15.22, -21.23)
CIE-LCH	lch(44.91, 26.12, 234.37°)
OKLab	oklab(51.88% -0.0629 -0.0595)
OKLCH	oklch(51.88% 0.087 223.4)
XYZ	xyz(11.5015, 14.4745, 27.3818)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F738D #8D391F

analogous

#1F8D70 #1F738D #1F3C8D

triadic

#1F738D #8D1F73 #738D1F

tetradic

#1F738D #701F8D #8D391F #3C8D1F

square

#1F738D #701F8D #8D391F #3C8D1F

split-complementary

#1F738D #8D1F3C #8D701F

monochromatic

#092129 #144A5B #1F738D #2A9CBF #4EB8D8

Accessibility & contrast

On white

5.39

#1F738D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#1F738D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F738D

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F738D	#FFFFFF	#000000	##FFFFFF
##1F738D	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64708E

Deuteranopia (green-blind)

#55668D

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #1f738d;
/* rgb */ color: rgb(31, 115, 141);
/* oklch */ color: oklch(51.9% 0.087 223.4);

Tailwind

colors: {
  custom: {
    50: '#6d9bae',
    500: '#1f738d',
    950: '#000000',
  },
}

SCSS

$custom: #1f738d;
$custom-light: #6d9bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1f738d",
  "rgb": {
    "r": 31,
    "g": 115,
    "b": 141
  },
  "hsl": {
    "h": 194.182,
    "s": 63.953,
    "l": 33.725
  },
  "oklch": {
    "l": 0.51877,
    "c": 0.08653,
    "h": 223.4
  },
  "luminance": 0.14476
}

Semantic roles & 50–950 ramp

primary

#1F738D

secondary

#BB674D

accent

#6841E7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1F738D

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

Preview Lab → · Contrast checker → · Palette generator →