#284AA6#284AA6

#284AA6 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.0% C 0.154 H 265.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#284AA6
RGB	rgb(40, 74, 166)
HSL	hsl(224, 61%, 40%)
HSV	hsv(224, 76%, 65%)
CMYK	cmyk(75.9%, 55.4%, 0%, 34.9%)
CIE-LAB	lab(34.19, 21.30, -53.15)
CIE-LCH	lch(34.19, 57.25, 291.84°)
OKLab	oklab(44.04% -0.0128 -0.1532)
OKLCH	oklch(44.04% 0.154 265.2)
XYZ	xyz(10.2044, 8.1007, 37.0948)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284AA6 #A68428

analogous

#2889A6 #284AA6 #4528A6

triadic

#284AA6 #A6284A #4AA628

tetradic

#284AA6 #A62889 #A68428 #28A645

square

#284AA6 #A62889 #A68428 #28A645

split-complementary

#284AA6 #A64528 #89A628

monochromatic

#101E43 #1C3475 #284AA6 #3B63D0 #6D8BDC

Accessibility & contrast

On white

8.01

#284AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#284AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284AA6

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284AA6	#FFFFFF	#000000	##FFFFFF
##284AA6	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056A9

Deuteranopia (green-blind)

#004BA4

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #284aa6;
/* rgb */ color: rgb(40, 74, 166);
/* oklch */ color: oklch(44.0% 0.154 265.2);

Tailwind

colors: {
  custom: {
    50: '#757cc1',
    500: '#284aa6',
    950: '#000000',
  },
}

SCSS

$custom: #284aa6;
$custom-light: #757cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#284aa6",
  "rgb": {
    "r": 40,
    "g": 74,
    "b": 166
  },
  "hsl": {
    "h": 223.81,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4404,
    "c": 0.15373,
    "h": 265.2
  },
  "luminance": 0.08102
}

Semantic roles & 50–950 ramp

primary

#284AA6

secondary

#C2AA67

accent

#B944E4

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #284AA6

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

Preview Lab → · Contrast checker → · Palette generator →