#284DAA#284DAA

#284DAA is a dark, vivid blue. Relative luminance 0.087; OKLCH L 45.0% C 0.155 H 264.5°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#284DAA
RGB	rgb(40, 77, 170)
HSL	hsl(223, 62%, 41%)
HSV	hsv(223, 76%, 67%)
CMYK	cmyk(76.5%, 54.7%, 0%, 33.3%)
CIE-LAB	lab(35.32, 20.83, -53.70)
CIE-LCH	lch(35.32, 57.60, 291.20°)
OKLab	oklab(44.99% -0.0148 -0.1548)
OKLCH	oklch(44.99% 0.155 264.5)
XYZ	xyz(10.7821, 8.6599, 39.1257)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284DAA #AA8528

analogous

#288EAA #284DAA #4428AA

triadic

#284DAA #AA284D #4DAA28

tetradic

#284DAA #AA288E #AA8528 #28AA44

square

#284DAA #AA288E #AA8528 #28AA44

split-complementary

#284DAA #AA4428 #8EAA28

monochromatic

#112047 #1C3778 #284DAA #3E68D2 #6F8FDD

Accessibility & contrast

On white

7.69

#284DAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#284DAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284DAA

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284DAA	#FFFFFF	#000000	##FFFFFF
##284DAA	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AD

Deuteranopia (green-blind)

#004DA8

Tritanopia (blue-blind)

#006474

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #284daa;
/* rgb */ color: rgb(40, 77, 170);
/* oklch */ color: oklch(45.0% 0.155 264.5);

Tailwind

colors: {
  custom: {
    50: '#757ec4',
    500: '#284daa',
    950: '#000000',
  },
}

SCSS

$custom: #284daa;
$custom-light: #757ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#284daa",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 170
  },
  "hsl": {
    "h": 222.923,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.44989,
    "c": 0.15548,
    "h": 264.5
  },
  "luminance": 0.08661
}

Semantic roles & 50–950 ramp

primary

#284DAA

secondary

#C4AA6A

accent

#B743E5

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #284DAA

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

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