#1733A0#1733A0

#1733A0 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.178 H 266.1°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#1733A0
RGB	rgb(23, 51, 160)
HSL	hsl(228, 75%, 36%)
HSV	hsv(228, 86%, 63%)
CMYK	cmyk(85.6%, 68.1%, 0%, 37.3%)
CIE-LAB	lab(26.98, 32.76, -61.34)
CIE-LCH	lch(26.98, 69.54, 298.11°)
OKLab	oklab(38.34% -0.0121 -0.1778)
OKLCH	oklch(38.34% 0.178 266.1)
XYZ	xyz(7.8801, 5.0869, 33.8174)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1733A0 #A08417

analogous

#1777A0 #1733A0 #3F17A0

triadic

#1733A0 #A01733 #33A017

tetradic

#1733A0 #A01777 #A08417 #17A03F

square

#1733A0 #A01777 #A08417 #17A03F

split-complementary

#1733A0 #A03F17 #77A017

monochromatic

#081135 #0F226A #1733A0 #1F44D6 #4C6BE5

Accessibility & contrast

On white

10.41

#1733A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#1733A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1733A0

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1733A0	#FFFFFF	#000000	##FFFFFF
##1733A0	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046A3

Deuteranopia (green-blind)

#00399E

Tritanopia (blue-blind)

#005165

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1733a0;
/* rgb */ color: rgb(23, 51, 160);
/* oklch */ color: oklch(38.3% 0.178 266.1);

Tailwind

colors: {
  custom: {
    50: '#706abd',
    500: '#1733a0',
    950: '#000000',
  },
}

SCSS

$custom: #1733a0;
$custom-light: #706abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1733a0",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 160
  },
  "hsl": {
    "h": 227.737,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.38338,
    "c": 0.17819,
    "h": 266.1
  },
  "luminance": 0.05088
}

Semantic roles & 50–950 ramp

primary

#1733A0

secondary

#C7AE4C

accent

#CB36F1

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1733A0

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

Preview Lab → · Contrast checker → · Palette generator →