#174AB3#174AB3

#174AB3 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.6% C 0.176 H 262.4°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#174AB3
RGB	rgb(23, 74, 179)
HSL	hsl(220, 77%, 40%)
HSV	hsv(220, 87%, 70%)
CMYK	cmyk(87.2%, 58.7%, 0%, 29.8%)
CIE-LAB	lab(34.67, 24.80, -60.14)
CIE-LCH	lch(34.67, 65.05, 292.41°)
OKLab	oklab(44.57% -0.0233 -0.174)
OKLCH	oklch(44.57% 0.176 262.4)
XYZ	xyz(10.9359, 8.3330, 43.6711)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174AB3 #B38017

analogous

#1798B3 #174AB3 #3217B3

triadic

#174AB3 #B3174A #4AB317

tetradic

#174AB3 #B31798 #B38017 #17B332

square

#174AB3 #B31798 #B38017 #17B332

split-complementary

#174AB3 #B33217 #98B317

monochromatic

#091D47 #10347D #174AB3 #2463E3 #5B89EA

Accessibility & contrast

On white

7.87

#174AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#174AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174AB3

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174AB3	#FFFFFF	#000000	##FFFFFF
##174AB3	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B7

Deuteranopia (green-blind)

#004BB1

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #174ab3;
/* rgb */ color: rgb(23, 74, 179);
/* oklch */ color: oklch(44.6% 0.176 262.4);

Tailwind

colors: {
  custom: {
    50: '#737bcb',
    500: '#174ab3',
    950: '#000000',
  },
}

SCSS

$custom: #174ab3;
$custom-light: #737bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#174ab3",
  "rgb": {
    "r": 23,
    "g": 74,
    "b": 179
  },
  "hsl": {
    "h": 220.385,
    "s": 77.228,
    "l": 39.608
  },
  "oklch": {
    "l": 0.44565,
    "c": 0.17553,
    "h": 262.4
  },
  "luminance": 0.08334
}

Semantic roles & 50–950 ramp

primary

#174AB3

secondary

#CDA758

accent

#B534F4

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #174AB3

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

Preview Lab → · Contrast checker → · Palette generator →