#281684#281684

#281684 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.8% C 0.168 H 278.4°. Best body text is #FFFFFF at 13.65:1 contrast (WCAG AA passes).

Color values

HEX	#281684
RGB	rgb(40, 22, 132)
HSL	hsl(250, 71%, 30%)
HSV	hsv(250, 83%, 52%)
CMYK	cmyk(69.7%, 83.3%, 0%, 48.2%)
CIE-LAB	lab(18.76, 41.51, -57.54)
CIE-LCH	lch(18.76, 70.95, 305.80°)
OKLab	oklab(31.83% 0.0245 -0.1662)
OKLCH	oklch(31.83% 0.168 278.4)
XYZ	xyz(5.3255, 2.6904, 22.0640)
Luminance	0.0269 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281684 #728416

analogous

#163B84 #281684 #5F1684

triadic

#281684 #842816 #168428

tetradic

#281684 #84163B #728416 #16845F

square

#281684 #84163B #728416 #16845F

split-complementary

#281684 #845F16 #3B8416

monochromatic

#08051B #180D50 #281684 #381FB8 #5237DE

Accessibility & contrast

On white

13.65

#281684 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#281684 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281684

13.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281684	#FFFFFF	#000000	##FFFFFF
##281684	1.00	13.65	1.54	13.65
#FFFFFF	13.65	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003287

Deuteranopia (green-blind)

#002982

Tritanopia (blue-blind)

#00384E

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #281684;
/* rgb */ color: rgb(40, 22, 132);
/* oklch */ color: oklch(31.8% 0.168 278.4);

Tailwind

colors: {
  custom: {
    50: '#7157a9',
    500: '#281684',
    950: '#000000',
  },
}

SCSS

$custom: #281684;
$custom-light: #7157a9;
$custom-dark: #000000;

JSON

{
  "hex": "#281684",
  "rgb": {
    "r": 40,
    "g": 22,
    "b": 132
  },
  "hsl": {
    "h": 249.818,
    "s": 71.429,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31826,
    "c": 0.168,
    "h": 278.4
  },
  "luminance": 0.02691
}

Semantic roles & 50–950 ramp

primary

#281684

secondary

#A4B83D

accent

#EE3AD1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #281684

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

Preview Lab → · Contrast checker → · Palette generator →