#3357AD#3357AD

#3357AD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.8% C 0.144 H 264.5°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3357AD
RGB	rgb(51, 87, 173)
HSL	hsl(222, 54%, 44%)
HSV	hsv(222, 71%, 68%)
CMYK	cmyk(70.5%, 49.7%, 0%, 32.2%)
CIE-LAB	lab(38.79, 16.84, -49.86)
CIE-LCH	lch(38.79, 52.63, 288.67°)
OKLab	oklab(47.82% -0.0138 -0.1431)
OKLCH	oklch(47.82% 0.144 264.5)
XYZ	xyz(12.3136, 10.5361, 40.9118)
Luminance	0.1054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357AD #AD8933

analogous

#3394AD #3357AD #4C33AD

triadic

#3357AD #AD3357 #57AD33

tetradic

#3357AD #AD3394 #AD8933 #33AD4C

square

#3357AD #AD3394 #AD8933 #33AD4C

split-complementary

#3357AD #AD4C33 #94AD33

monochromatic

#17274E #253F7E #3357AD #5176CC #819BDA

Accessibility & contrast

On white

6.76

#3357AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3357AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357AD

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357AD	#FFFFFF	#000000	##FFFFFF
##3357AD	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661B0

Deuteranopia (green-blind)

#0056AB

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3357ad;
/* rgb */ color: rgb(51, 87, 173);
/* oklch */ color: oklch(47.8% 0.144 264.5);

Tailwind

colors: {
  custom: {
    50: '#7a85c6',
    500: '#3357ad',
    950: '#000000',
  },
}

SCSS

$custom: #3357ad;
$custom-light: #7a85c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3357ad",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 173
  },
  "hsl": {
    "h": 222.295,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.47819,
    "c": 0.14374,
    "h": 264.5
  },
  "luminance": 0.10537
}

Semantic roles & 50–950 ramp

primary

#3357AD

secondary

#C3AD79

accent

#B24ADE

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3357AD

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

Preview Lab → · Contrast checker → · Palette generator →