#284181#284181

#284181 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.2% C 0.112 H 265.5°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#284181
RGB	rgb(40, 65, 129)
HSL	hsl(223, 53%, 33%)
HSV	hsv(223, 69%, 51%)
CMYK	cmyk(69%, 49.6%, 0%, 49.4%)
CIE-LAB	lab(28.94, 13.09, -39.03)
CIE-LCH	lch(28.94, 41.17, 288.55°)
OKLab	oklab(39.2% -0.0088 -0.1118)
OKLCH	oklch(39.2% 0.112 265.5)
XYZ	xyz(6.7264, 5.8160, 21.5327)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284181 #816828

analogous

#286D81 #284181 #3B2881

triadic

#284181 #812841 #418128

tetradic

#284181 #81286D #816828 #28813B

square

#284181 #81286D #816828 #28813B

split-complementary

#284181 #813B28 #6D8128

monochromatic

#0B1224 #1A2952 #284181 #3659B0 #5878CB

Accessibility & contrast

On white

9.71

#284181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#284181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284181

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284181	#FFFFFF	#000000	##FFFFFF
##284181	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4983

Deuteranopia (green-blind)

#0B4080

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #284181;
/* rgb */ color: rgb(40, 65, 129);
/* oklch */ color: oklch(39.2% 0.112 265.5);

Tailwind

colors: {
  custom: {
    50: '#6d75a6',
    500: '#284181',
    950: '#000000',
  },
}

SCSS

$custom: #284181;
$custom-light: #6d75a6;
$custom-dark: #000000;

JSON

{
  "hex": "#284181",
  "rgb": {
    "r": 40,
    "g": 65,
    "b": 129
  },
  "hsl": {
    "h": 223.146,
    "s": 52.663,
    "l": 33.137
  },
  "oklch": {
    "l": 0.39204,
    "c": 0.11217,
    "h": 265.5
  },
  "luminance": 0.05817
}

Semantic roles & 50–950 ramp

primary

#284181

secondary

#B09754

accent

#B44CDC

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #284181

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

Preview Lab → · Contrast checker → · Palette generator →