#174BB4#174BB4

#174BB4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.176 H 262.2°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#174BB4
RGB	rgb(23, 75, 180)
HSL	hsl(220, 77%, 40%)
HSV	hsv(220, 87%, 71%)
CMYK	cmyk(87.2%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(35.02, 24.52, -60.15)
CIE-LCH	lch(35.02, 64.96, 292.18°)
OKLab	oklab(44.86% -0.0238 -0.174)
OKLCH	oklch(44.86% 0.176 262.2)
XYZ	xyz(11.1047, 8.5082, 44.2281)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#174BB4 #B48017

analogous

#179AB4 #174BB4 #3117B4

triadic

#174BB4 #B4174B #4BB417

tetradic

#174BB4 #B4179A #B48017 #17B431

square

#174BB4 #B4179A #B48017 #17B431

split-complementary

#174BB4 #B43117 #9AB417

monochromatic

#091E47 #10347E #174BB4 #2564E3 #5B8BEA

Accessibility & contrast

On white

7.77

#174BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#174BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174BB4

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##174BB4	#FFFFFF	#000000	##FFFFFF
##174BB4	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB8

Deuteranopia (green-blind)

#004CB2

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #174bb4;
/* rgb */ color: rgb(23, 75, 180);
/* oklch */ color: oklch(44.9% 0.176 262.2);

Tailwind

colors: {
  custom: {
    50: '#737ccb',
    500: '#174bb4',
    950: '#000000',
  },
}

SCSS

$custom: #174bb4;
$custom-light: #737ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#174bb4",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 220.127,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.44855,
    "c": 0.17563,
    "h": 262.2
  },
  "luminance": 0.0851
}

Semantic roles & 50–950 ramp

primary

#174BB4

secondary

#CEA759

accent

#B434F4

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #174BB4

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

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