#174B80#174B80

#174B80 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.104 H 252.3°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#174B80
RGB	rgb(23, 75, 128)
HSL	hsl(210, 70%, 30%)
HSV	hsv(210, 82%, 50%)
CMYK	cmyk(82%, 41.4%, 0%, 49.8%)
CIE-LAB	lab(31.28, 3.40, -34.70)
CIE-LCH	lch(31.28, 34.87, 275.60°)
OKLab	oklab(40.81% -0.0316 -0.0992)
OKLCH	oklch(40.81% 0.104 252.3)
XYZ	xyz(6.7642, 6.7720, 21.3685)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174B80 #804C17

analogous

#177F80 #174B80 #181780

triadic

#174B80 #80174B #4B8017

tetradic

#174B80 #80177F #804C17 #178018

square

#174B80 #80177F #804C17 #178018

split-complementary

#174B80 #801817 #7F8017

monochromatic

#050F1A #0E2D4C #174B80 #2069B4 #3688DB

Accessibility & contrast

On white

8.92

#174B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#174B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B80

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174B80	#FFFFFF	#000000	##FFFFFF
##174B80	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314F82

Deuteranopia (green-blind)

#20457F

Tritanopia (blue-blind)

#00585F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #174b80;
/* rgb */ color: rgb(23, 75, 128);
/* oklch */ color: oklch(40.8% 0.104 252.3);

Tailwind

colors: {
  custom: {
    50: '#667ca5',
    500: '#174b80',
    950: '#000000',
  },
}

SCSS

$custom: #174b80;
$custom-light: #667ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#174b80",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 128
  },
  "hsl": {
    "h": 210.286,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.40806,
    "c": 0.10409,
    "h": 252.3
  },
  "luminance": 0.06773
}

Semantic roles & 50–950 ramp

primary

#174B80

secondary

#B47A3E

accent

#953BEC

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #174B80

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

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