#3357A8#3357A8

#3357A8 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.5% C 0.137 H 263.9°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3357A8
RGB	rgb(51, 87, 168)
HSL	hsl(222, 53%, 43%)
HSV	hsv(222, 70%, 66%)
CMYK	cmyk(69.6%, 48.2%, 0%, 34.1%)
CIE-LAB	lab(38.46, 14.98, -47.43)
CIE-LCH	lch(38.46, 49.74, 287.53°)
OKLab	oklab(47.46% -0.0145 -0.1359)
OKLCH	oklch(47.46% 0.137 263.9)
XYZ	xyz(11.8388, 10.3462, 38.4113)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3357A8 #A88433

analogous

#3392A8 #3357A8 #4933A8

triadic

#3357A8 #A83357 #57A833

tetradic

#3357A8 #A83392 #A88433 #33A849

square

#3357A8 #A83392 #A88433 #33A849

split-complementary

#3357A8 #A84933 #92A833

monochromatic

#16264A #253F79 #3357A8 #4F74C9 #7E99D8

Accessibility & contrast

On white

6.84

#3357A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3357A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3357A8

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3357A8	#FFFFFF	#000000	##FFFFFF
##3357A8	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C60AB

Deuteranopia (green-blind)

#0F55A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3357a8;
/* rgb */ color: rgb(51, 87, 168);
/* oklch */ color: oklch(47.5% 0.137 263.9);

Tailwind

colors: {
  custom: {
    50: '#7985c2',
    500: '#3357a8',
    950: '#000000',
  },
}

SCSS

$custom: #3357a8;
$custom-light: #7985c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3357a8",
  "rgb": {
    "r": 51,
    "g": 87,
    "b": 168
  },
  "hsl": {
    "h": 221.538,
    "s": 53.425,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47459,
    "c": 0.1367,
    "h": 263.9
  },
  "luminance": 0.10347
}

Semantic roles & 50–950 ramp

primary

#3357A8

secondary

#C1AA76

accent

#B04BDD

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3357A8

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

Preview Lab → · Contrast checker → · Palette generator →