#174B7B#174B7B

#174B7B is a dark, moderate cyan. Relative luminance 0.066; OKLCH L 40.5% C 0.097 H 250.2°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#174B7B
RGB	rgb(23, 75, 123)
HSL	hsl(209, 68%, 29%)
HSV	hsv(209, 81%, 48%)
CMYK	cmyk(81.3%, 39%, 0%, 51.8%)
CIE-LAB	lab(30.98, 1.37, -32.07)
CIE-LCH	lch(30.98, 32.10, 272.44°)
OKLab	oklab(40.47% -0.0329 -0.0915)
OKLCH	oklch(40.47% 0.097 250.2)
XYZ	xyz(6.4432, 6.6436, 19.6778)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174B7B #7B4717

analogous

#177B79 #174B7B #17197B

triadic

#174B7B #7B174B #4B7B17

tetradic

#174B7B #79177B #7B4717 #197B17

square

#174B7B #79177B #7B4717 #197B17

split-complementary

#174B7B #7B1719 #7B7917

monochromatic

#05101A #0D2C47 #174B7B #216AAF #338AD9

Accessibility & contrast

On white

9.02

#174B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#174B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B7B

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174B7B	#FFFFFF	#000000	##FFFFFF
##174B7B	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344E7D

Deuteranopia (green-blind)

#25457A

Tritanopia (blue-blind)

#00565D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #174b7b;
/* rgb */ color: rgb(23, 75, 123);
/* oklch */ color: oklch(40.5% 0.097 250.2);

Tailwind

colors: {
  custom: {
    50: '#657ca1',
    500: '#174b7b',
    950: '#000000',
  },
}

SCSS

$custom: #174b7b;
$custom-light: #657ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#174b7b",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 123
  },
  "hsl": {
    "h": 208.8,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.40473,
    "c": 0.0972,
    "h": 250.2
  },
  "luminance": 0.06644
}

Semantic roles & 50–950 ramp

primary

#174B7B

secondary

#B0753E

accent

#903CEB

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090F

muted

#7A7B7E

Preview Lab

Preview with #174B7B

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

Preview Lab → · Contrast checker → · Palette generator →