#174B7F#174B7F

#174B7F is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.7% C 0.103 H 251.9°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#174B7F
RGB	rgb(23, 75, 127)
HSL	hsl(210, 69%, 29%)
HSV	hsv(210, 82%, 50%)
CMYK	cmyk(81.9%, 40.9%, 0%, 50.2%)
CIE-LAB	lab(31.22, 2.99, -34.18)
CIE-LCH	lch(31.22, 34.31, 275.00°)
OKLab	oklab(40.74% -0.0318 -0.0976)
OKLCH	oklch(40.74% 0.103 251.9)
XYZ	xyz(6.6987, 6.7458, 21.0236)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174B7F #7F4B17

analogous

#177F7F #174B7F #17177F

triadic

#174B7F #7F174B #4B7F17

tetradic

#174B7F #7F177F #7F4B17 #177F17

square

#174B7F #7F177F #7F4B17 #177F17

split-complementary

#174B7F #7F1717 #7F7F17

monochromatic

#050F1A #0E2C4B #174B7F #206AB3 #3688DB

Accessibility & contrast

On white

8.94

#174B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#174B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B7F

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174B7F	#FFFFFF	#000000	##FFFFFF
##174B7F	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324F81

Deuteranopia (green-blind)

#21457E

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #174b7f;
/* rgb */ color: rgb(23, 75, 127);
/* oklch */ color: oklch(40.7% 0.103 251.9);

Tailwind

colors: {
  custom: {
    50: '#667ca4',
    500: '#174b7f',
    950: '#000000',
  },
}

SCSS

$custom: #174b7f;
$custom-light: #667ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#174b7f",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 127
  },
  "hsl": {
    "h": 210,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.40739,
    "c": 0.1027,
    "h": 251.9
  },
  "luminance": 0.06747
}

Semantic roles & 50–950 ramp

primary

#174B7F

secondary

#B4793E

accent

#943CEC

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #174B7F

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

Preview Lab → · Contrast checker → · Palette generator →