#284BA6#284BA6

#284BA6 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.2% C 0.152 H 264.9°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#284BA6
RGB	rgb(40, 75, 166)
HSL	hsl(223, 61%, 40%)
HSV	hsv(223, 76%, 65%)
CMYK	cmyk(75.9%, 54.8%, 0%, 34.9%)
CIE-LAB	lab(34.47, 20.63, -52.70)
CIE-LCH	lch(34.47, 56.59, 291.38°)
OKLab	oklab(44.25% -0.0136 -0.1519)
OKLCH	oklch(44.25% 0.152 264.9)
XYZ	xyz(10.2717, 8.2353, 37.1172)
Luminance	0.0824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284BA6 #A68328

analogous

#288AA6 #284BA6 #4428A6

triadic

#284BA6 #A6284B #4BA628

tetradic

#284BA6 #A6288A #A68328 #28A644

square

#284BA6 #A6288A #A68328 #28A644

split-complementary

#284BA6 #A64428 #8AA628

monochromatic

#101E43 #1C3575 #284BA6 #3B65D0 #6D8CDC

Accessibility & contrast

On white

7.93

#284BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#284BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284BA6

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284BA6	#FFFFFF	#000000	##FFFFFF
##284BA6	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057A9

Deuteranopia (green-blind)

#004CA4

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #284ba6;
/* rgb */ color: rgb(40, 75, 166);
/* oklch */ color: oklch(44.2% 0.152 264.9);

Tailwind

colors: {
  custom: {
    50: '#757cc1',
    500: '#284ba6',
    950: '#000000',
  },
}

SCSS

$custom: #284ba6;
$custom-light: #757cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#284ba6",
  "rgb": {
    "r": 40,
    "g": 75,
    "b": 166
  },
  "hsl": {
    "h": 223.333,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44249,
    "c": 0.15246,
    "h": 264.9
  },
  "luminance": 0.08236
}

Semantic roles & 50–950 ramp

primary

#284BA6

secondary

#C2A967

accent

#B844E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #284BA6

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

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