#1F688B#1F688B

#1F688B is a mid, moderate cyan. Relative luminance 0.121; OKLCH L 49.0% C 0.089 H 234.0°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#1F688B
RGB	rgb(31, 104, 139)
HSL	hsl(199, 64%, 33%)
HSV	hsv(199, 78%, 55%)
CMYK	cmyk(77.7%, 25.2%, 0%, 45.5%)
CIE-LAB	lab(41.30, -9.59, -25.62)
CIE-LCH	lch(41.30, 27.36, 249.47°)
OKLab	oklab(48.97% -0.0524 -0.0722)
OKLCH	oklch(48.97% 0.089 234)
XYZ	xyz(10.1737, 12.0548, 26.2117)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F688B #8B421F

analogous

#1F8B78 #1F688B #1F328B

triadic

#1F688B #8B1F68 #688B1F

tetradic

#1F688B #781F8B #8B421F #328B1F

square

#1F688B #781F8B #8B421F #328B1F

split-complementary

#1F688B #8B1F32 #8B781F

monochromatic

#091D27 #144359 #1F688B #2A8DBD #4DABD7

Accessibility & contrast

On white

6.16

#1F688B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#1F688B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F688B

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F688B	#FFFFFF	#000000	##FFFFFF
##1F688B	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57678D

Deuteranopia (green-blind)

#485D8A

Tritanopia (blue-blind)

#007174

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #1f688b;
/* rgb */ color: rgb(31, 104, 139);
/* oklch */ color: oklch(49.0% 0.089 234.0);

Tailwind

colors: {
  custom: {
    50: '#6c93ad',
    500: '#1f688b',
    950: '#000000',
  },
}

SCSS

$custom: #1f688b;
$custom-light: #6c93ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1f688b",
  "rgb": {
    "r": 31,
    "g": 104,
    "b": 139
  },
  "hsl": {
    "h": 199.444,
    "s": 63.529,
    "l": 33.333
  },
  "oklch": {
    "l": 0.48968,
    "c": 0.08916,
    "h": 234
  },
  "luminance": 0.12056
}

Semantic roles & 50–950 ramp

primary

#1F688B

secondary

#BA6F4C

accent

#7741E7

background

#F6F9FA

surface

#ECF1F4

border

#C7CBCE

text

#080D10

muted

#7A7E7F

Preview Lab

Preview with #1F688B

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

Preview Lab → · Contrast checker → · Palette generator →