#1F758B#1F758B

#1F758B is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.3% C 0.085 H 219.2°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#1F758B
RGB	rgb(31, 117, 139)
HSL	hsl(192, 64%, 33%)
HSV	hsv(192, 78%, 55%)
CMYK	cmyk(77.7%, 15.8%, 0%, 45.5%)
CIE-LAB	lab(45.46, -17.03, -19.18)
CIE-LCH	lch(45.46, 25.65, 228.40°)
OKLab	oklab(52.3% -0.0657 -0.0536)
OKLCH	oklch(52.3% 0.085 219.2)
XYZ	xyz(11.5846, 14.8766, 26.6820)
Luminance	0.1488 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F758B #8B351F

analogous

#1F8B6B #1F758B #1F3F8B

triadic

#1F758B #8B1F75 #758B1F

tetradic

#1F758B #6B1F8B #8B351F #3F8B1F

square

#1F758B #6B1F8B #8B351F #3F8B1F

split-complementary

#1F758B #8B1F3F #8B6B1F

monochromatic

#092127 #144B59 #1F758B #2A9FBD #4DBBD7

Accessibility & contrast

On white

5.28

#1F758B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#1F758B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F758B

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F758B	#FFFFFF	#000000	##FFFFFF
##1F758B	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67728C

Deuteranopia (green-blind)

#59678B

Tritanopia (blue-blind)

#007C7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #1f758b;
/* rgb */ color: rgb(31, 117, 139);
/* oklch */ color: oklch(52.3% 0.085 219.2);

Tailwind

colors: {
  custom: {
    50: '#6d9dad',
    500: '#1f758b',
    950: '#000000',
  },
}

SCSS

$custom: #1f758b;
$custom-light: #6d9dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f758b",
  "rgb": {
    "r": 31,
    "g": 117,
    "b": 139
  },
  "hsl": {
    "h": 192.222,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.52299,
    "c": 0.08484,
    "h": 219.2
  },
  "luminance": 0.14878
}

Semantic roles & 50–950 ramp

primary

#1F758B

secondary

#BA624C

accent

#6341E7

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080E10

muted

#7B7E7F

Preview Lab

Preview with #1F758B

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

Preview Lab → · Contrast checker → · Palette generator →