#284BA2#284BA2

#284BA2 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 43.9% C 0.147 H 264.5°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#284BA2
RGB	rgb(40, 75, 162)
HSL	hsl(223, 60%, 40%)
HSV	hsv(223, 75%, 64%)
CMYK	cmyk(75.3%, 53.7%, 0%, 36.5%)
CIE-LAB	lab(34.17, 19.08, -50.78)
CIE-LCH	lch(34.17, 54.25, 290.59°)
OKLab	oklab(43.93% -0.014 -0.1462)
OKLCH	oklch(43.93% 0.147 264.5)
XYZ	xyz(9.9104, 8.0908, 35.2148)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BA2 #A27F28

analogous

#2888A2 #284BA2 #4228A2

triadic

#284BA2 #A2284B #4BA228

tetradic

#284BA2 #A22888 #A27F28 #28A242

square

#284BA2 #A22888 #A27F28 #28A242

split-complementary

#284BA2 #A24228 #88A228

monochromatic

#101E40 #1C3471 #284BA2 #3964CE #6A8ADA

Accessibility & contrast

On white

8.02

#284BA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#284BA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BA2

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BA2	#FFFFFF	#000000	##FFFFFF
##284BA2	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B56A5

Deuteranopia (green-blind)

#004BA0

Tritanopia (blue-blind)

#00606F

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #284ba2;
/* rgb */ color: rgb(40, 75, 162);
/* oklch */ color: oklch(43.9% 0.147 264.5);

Tailwind

colors: {
  custom: {
    50: '#747cbe',
    500: '#284ba2',
    950: '#000000',
  },
}

SCSS

$custom: #284ba2;
$custom-light: #747cbe;
$custom-dark: #000000;

JSON

{
  "hex": "#284ba2",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 162
  },
  "hsl": {
    "h": 222.787,
    "s": 60.396,
    "l": 39.608
  },
  "oklch": {
    "l": 0.4393,
    "c": 0.14687,
    "h": 264.5
  },
  "luminance": 0.08092
}

Semantic roles & 50–950 ramp

primary

#284BA2

secondary

#C1A665

accent

#B644E4

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #284BA2

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

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