#3457A5#3457A5

#3457A5 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.3% C 0.132 H 263.9°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3457A5
RGB	rgb(52, 87, 165)
HSL	hsl(221, 52%, 43%)
HSV	hsv(221, 68%, 65%)
CMYK	cmyk(68.5%, 47.3%, 0%, 35.3%)
CIE-LAB	lab(38.31, 14.02, -45.88)
CIE-LCH	lch(38.31, 47.97, 287.00°)
OKLab	oklab(47.3% -0.0141 -0.1314)
OKLCH	oklch(47.3% 0.132 263.9)
XYZ	xyz(11.6135, 10.2619, 36.9587)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3457A5 #A58234

analogous

#348FA5 #3457A5 #4934A5

triadic

#3457A5 #A53457 #57A534

tetradic

#3457A5 #A5348F #A58234 #34A549

square

#3457A5 #A5348F #A58234 #34A549

split-complementary

#3457A5 #A54934 #8FA534

monochromatic

#172648 #253E76 #3457A5 #4F74C7 #7D99D6

Accessibility & contrast

On white

6.88

#3457A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3457A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3457A5

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3457A5	#FFFFFF	#000000	##FFFFFF
##3457A5	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F60A8

Deuteranopia (green-blind)

#1855A3

Tritanopia (blue-blind)

#006976

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3457a5;
/* rgb */ color: rgb(52, 87, 165);
/* oklch */ color: oklch(47.3% 0.132 263.9);

Tailwind

colors: {
  custom: {
    50: '#7885c0',
    500: '#3457a5',
    950: '#000000',
  },
}

SCSS

$custom: #3457a5;
$custom-light: #7885c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3457a5",
  "rgb": {
    "r": 52,
    "g": 87,
    "b": 165
  },
  "hsl": {
    "h": 221.416,
    "s": 52.074,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47296,
    "c": 0.13211,
    "h": 263.9
  },
  "luminance": 0.10263
}

Semantic roles & 50–950 ramp

primary

#3457A5

secondary

#BFA876

accent

#AF4CDC

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3457A5

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

Preview Lab → · Contrast checker → · Palette generator →