#1733A1#1733A1

#1733A1 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.179 H 266.1°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#1733A1
RGB	rgb(23, 51, 161)
HSL	hsl(228, 75%, 36%)
HSV	hsv(228, 86%, 63%)
CMYK	cmyk(85.7%, 68.3%, 0%, 36.9%)
CIE-LAB	lab(27.08, 33.14, -61.78)
CIE-LCH	lch(27.08, 70.11, 298.21°)
OKLab	oklab(38.44% -0.0122 -0.1791)
OKLCH	oklch(38.44% 0.179 266.1)
XYZ	xyz(7.9679, 5.1220, 34.2800)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1733A1 #A18517

analogous

#1778A1 #1733A1 #4017A1

triadic

#1733A1 #A11733 #33A117

tetradic

#1733A1 #A11778 #A18517 #17A140

square

#1733A1 #A11778 #A18517 #17A140

split-complementary

#1733A1 #A14017 #78A117

monochromatic

#081136 #0F226B #1733A1 #1F44D7 #4D6CE6

Accessibility & contrast

On white

10.37

#1733A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1733A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1733A1

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1733A1	#FFFFFF	#000000	##FFFFFF
##1733A1	1.00	10.37	2.02	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A4

Deuteranopia (green-blind)

#00399F

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1733a1;
/* rgb */ color: rgb(23, 51, 161);
/* oklch */ color: oklch(38.4% 0.179 266.1);

Tailwind

colors: {
  custom: {
    50: '#706abe',
    500: '#1733a1',
    950: '#000000',
  },
}

SCSS

$custom: #1733a1;
$custom-light: #706abe;
$custom-dark: #000000;

JSON

{
  "hex": "#1733a1",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 161
  },
  "hsl": {
    "h": 227.826,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.3844,
    "c": 0.17949,
    "h": 266.1
  },
  "luminance": 0.05123
}

Semantic roles & 50–950 ramp

primary

#1733A1

secondary

#C7AE4C

accent

#CC36F2

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1733A1

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

Preview Lab → · Contrast checker → · Palette generator →