#282FB4#282FB4

#282FB4 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.5% C 0.203 H 270.7°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#282FB4
RGB	rgb(40, 47, 180)
HSL	hsl(237, 64%, 43%)
HSV	hsv(237, 78%, 71%)
CMYK	cmyk(77.8%, 73.9%, 0%, 29.4%)
CIE-LAB	lab(28.85, 43.74, -70.27)
CIE-LCH	lch(28.85, 82.76, 301.90°)
OKLab	oklab(40.5% 0.0026 -0.2035)
OKLCH	oklch(40.5% 0.203 270.7)
XYZ	xyz(10.1270, 5.7783, 43.7528)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282FB4 #B4AD28

analogous

#2875B4 #282FB4 #6728B4

triadic

#282FB4 #B4282F #2FB428

tetradic

#282FB4 #B42875 #B4AD28 #28B467

square

#282FB4 #B42875 #B4AD28 #28B467

split-complementary

#282FB4 #B46728 #75B428

monochromatic

#121550 #1D2282 #282FB4 #444BD5 #767BE1

Accessibility & contrast

On white

9.74

#282FB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#282FB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282FB4

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282FB4	#FFFFFF	#000000	##FFFFFF
##282FB4	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BB8

Deuteranopia (green-blind)

#003DB2

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #282fb4;
/* rgb */ color: rgb(40, 47, 180);
/* oklch */ color: oklch(40.5% 0.203 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a69cc',
    500: '#282fb4',
    950: '#000000',
  },
}

SCSS

$custom: #282fb4;
$custom-light: #7a69cc;
$custom-dark: #000000;

JSON

{
  "hex": "#282fb4",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 180
  },
  "hsl": {
    "h": 237,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40496,
    "c": 0.20349,
    "h": 270.7
  },
  "luminance": 0.05779
}

Semantic roles & 50–950 ramp

primary

#282FB4

secondary

#C8C470

accent

#DE41E7

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0614

muted

#7C7A82

Preview Lab

Preview with #282FB4

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

Preview Lab → · Contrast checker → · Palette generator →