#3457AB#3457AB

#3457AB is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.141 H 264.6°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3457AB
RGB	rgb(52, 87, 171)
HSL	hsl(222, 53%, 44%)
HSV	hsv(222, 70%, 67%)
CMYK	cmyk(69.6%, 49.1%, 0%, 32.9%)
CIE-LAB	lab(38.70, 16.25, -48.81)
CIE-LCH	lch(38.70, 51.45, 288.42°)
OKLab	oklab(47.72% -0.0132 -0.14)
OKLCH	oklch(47.72% 0.141 264.6)
XYZ	xyz(12.1725, 10.4855, 39.9026)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457AB #AB8834

analogous

#3492AB #3457AB #4C34AB

triadic

#3457AB #AB3457 #57AB34

tetradic

#3457AB #AB3492 #AB8834 #34AB4C

square

#3457AB #AB3492 #AB8834 #34AB4C

split-complementary

#3457AB #AB4C34 #92AB34

monochromatic

#17274D #263F7C #3457AB #5275CA #819BD9

Accessibility & contrast

On white

6.78

#3457AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3457AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457AB

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457AB	#FFFFFF	#000000	##FFFFFF
##3457AB	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2961AE

Deuteranopia (green-blind)

#0656A9

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3457ab;
/* rgb */ color: rgb(52, 87, 171);
/* oklch */ color: oklch(47.7% 0.141 264.6);

Tailwind

colors: {
  custom: {
    50: '#7a85c4',
    500: '#3457ab',
    950: '#000000',
  },
}

SCSS

$custom: #3457ab;
$custom-light: #7a85c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3457ab",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 171
  },
  "hsl": {
    "h": 222.353,
    "s": 53.363,
    "l": 43.725
  },
  "oklch": {
    "l": 0.47721,
    "c": 0.14061,
    "h": 264.6
  },
  "luminance": 0.10487
}

Semantic roles & 50–950 ramp

primary

#3457AB

secondary

#C2AC79

accent

#B24BDD

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3457AB

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

Preview Lab → · Contrast checker → · Palette generator →