#284BB7#284BB7

#284BB7 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.7% C 0.176 H 265.9°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#284BB7
RGB	rgb(40, 75, 183)
HSL	hsl(225, 64%, 44%)
HSV	hsv(225, 78%, 72%)
CMYK	cmyk(78.1%, 59%, 0%, 28.2%)
CIE-LAB	lab(35.79, 27.14, -60.64)
CIE-LCH	lch(35.79, 66.44, 294.11°)
OKLab	oklab(45.66% -0.0127 -0.1752)
OKLCH	oklch(45.66% 0.176 265.9)
XYZ	xyz(11.9354, 8.9008, 45.8796)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BB7 #B79428

analogous

#2892B7 #284BB7 #4C28B7

triadic

#284BB7 #B7284B #4BB728

tetradic

#284BB7 #B72892 #B79428 #28B74C

square

#284BB7 #B72892 #B79428 #28B74C

split-complementary

#284BB7 #B74C28 #92B728

monochromatic

#122253 #1D3685 #284BB7 #4669D6 #7892E1

Accessibility & contrast

On white

7.55

#284BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#284BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BB7

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BB7	#FFFFFF	#000000	##FFFFFF
##284BB7	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BBB

Deuteranopia (green-blind)

#004EB5

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284bb7;
/* rgb */ color: rgb(40, 75, 183);
/* oklch */ color: oklch(45.7% 0.176 265.9);

Tailwind

colors: {
  custom: {
    50: '#797ccd',
    500: '#284bb7',
    950: '#000000',
  },
}

SCSS

$custom: #284bb7;
$custom-light: #797ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#284bb7",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 183
  },
  "hsl": {
    "h": 225.315,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4566,
    "c": 0.17565,
    "h": 265.9
  },
  "luminance": 0.08902
}

Semantic roles & 50–950 ramp

primary

#284BB7

secondary

#C9B472

accent

#BE41E7

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #284BB7

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

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