#3359AA#3359AA

#3359AA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.137 H 263.3°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3359AA
RGB	rgb(51, 89, 170)
HSL	hsl(221, 54%, 43%)
HSV	hsv(221, 70%, 67%)
CMYK	cmyk(70%, 47.6%, 0%, 33.3%)
CIE-LAB	lab(39.16, 14.42, -47.49)
CIE-LCH	lch(39.16, 49.63, 286.89°)
OKLab	oklab(48.04% -0.016 -0.1361)
OKLCH	oklch(48.04% 0.137 263.3)
XYZ	xyz(12.1908, 10.7496, 39.4548)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3359AA #AA8433

analogous

#3394AA #3359AA #4833AA

triadic

#3359AA #AA3359 #59AA33

tetradic

#3359AA #AA3394 #AA8433 #33AA48

square

#3359AA #AA3394 #AA8433 #33AA48

split-complementary

#3359AA #AA4833 #94AA33

monochromatic

#17284C #25407B #3359AA #5077CA #7F9BD9

Accessibility & contrast

On white

6.67

#3359AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3359AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3359AA

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3359AA	#FFFFFF	#000000	##FFFFFF
##3359AA	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E62AD

Deuteranopia (green-blind)

#1357A8

Tritanopia (blue-blind)

#006C79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3359aa;
/* rgb */ color: rgb(51, 89, 170);
/* oklch */ color: oklch(48.0% 0.137 263.3);

Tailwind

colors: {
  custom: {
    50: '#7987c4',
    500: '#3359aa',
    950: '#000000',
  },
}

SCSS

$custom: #3359aa;
$custom-light: #7987c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3359aa",
  "rgb": {
    "r": 51,
    "g": 89,
    "b": 170
  },
  "hsl": {
    "h": 220.84,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.48036,
    "c": 0.13702,
    "h": 263.3
  },
  "luminance": 0.10751
}

Semantic roles & 50–950 ramp

primary

#3359AA

secondary

#C2AA77

accent

#AE4BDD

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3359AA

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

Preview Lab → · Contrast checker → · Palette generator →