#1533A0#1533A0

#1533A0 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.179 H 265.7°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#1533A0
RGB	rgb(21, 51, 160)
HSL	hsl(227, 77%, 35%)
HSV	hsv(227, 87%, 63%)
CMYK	cmyk(86.9%, 68.1%, 0%, 37.3%)
CIE-LAB	lab(26.92, 32.63, -61.45)
CIE-LCH	lch(26.92, 69.57, 297.97°)
OKLab	oklab(38.27% -0.0135 -0.1781)
OKLCH	oklch(38.27% 0.179 265.7)
XYZ	xyz(7.8360, 5.0642, 33.8154)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1533A0 #A08215

analogous

#1579A0 #1533A0 #3C15A0

triadic

#1533A0 #A01533 #33A015

tetradic

#1533A0 #A01579 #A08215 #15A03C

square

#1533A0 #A01579 #A08215 #15A03C

split-complementary

#1533A0 #A03C15 #79A015

monochromatic

#071134 #0E226A #1533A0 #1C44D6 #486BE7

Accessibility & contrast

On white

10.43

#1533A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1533A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1533A0

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1533A0	#FFFFFF	#000000	##FFFFFF
##1533A0	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	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: #1533a0;
/* rgb */ color: rgb(21, 51, 160);
/* oklch */ color: oklch(38.3% 0.179 265.7);

Tailwind

colors: {
  custom: {
    50: '#706abd',
    500: '#1533a0',
    950: '#000000',
  },
}

SCSS

$custom: #1533a0;
$custom-light: #706abd;
$custom-dark: #000000;

JSON

{
  "hex": "#1533a0",
  "rgb": {
    "r": 21,
    "g": 51,
    "b": 160
  },
  "hsl": {
    "h": 227.05,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38272,
    "c": 0.17863,
    "h": 265.7
  },
  "luminance": 0.05065
}

Semantic roles & 50–950 ramp

primary

#1533A0

secondary

#C8AD49

accent

#CA34F3

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1533A0

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

Preview Lab → · Contrast checker → · Palette generator →