#354FBB#354FBB

#354FBB is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.4% C 0.173 H 268.6°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#354FBB
RGB	rgb(53, 79, 187)
HSL	hsl(228, 56%, 47%)
HSV	hsv(228, 72%, 73%)
CMYK	cmyk(71.7%, 57.8%, 0%, 26.7%)
CIE-LAB	lab(37.73, 27.55, -59.82)
CIE-LCH	lch(37.73, 65.86, 294.73°)
OKLab	oklab(47.36% -0.0041 -0.1725)
OKLCH	oklch(47.36% 0.173 268.6)
XYZ	xyz(13.2307, 9.9353, 48.2245)
Luminance	0.0994 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#354FBB #BBA135

analogous

#3592BB #354FBB #5E35BB

triadic

#354FBB #BB354F #4FBB35

tetradic

#354FBB #BB3592 #BBA135 #35BB5E

square

#354FBB #BB3592 #BBA135 #35BB5E

split-complementary

#354FBB #BB5E35 #92BB35

monochromatic

#1A275C #273B8B #354FBB #5C73D1 #8C9CDE

Accessibility & contrast

On white

7.03

#354FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#354FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #354FBB

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##354FBB	#FFFFFF	#000000	##FFFFFF
##354FBB	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBF

Deuteranopia (green-blind)

#0053B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #354fbb;
/* rgb */ color: rgb(53, 79, 187);
/* oklch */ color: oklch(47.4% 0.173 268.6);

Tailwind

colors: {
  custom: {
    50: '#7e80d0',
    500: '#354fbb',
    950: '#000000',
  },
}

SCSS

$custom: #354fbb;
$custom-light: #7e80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#354fbb",
  "rgb": {
    "r": 53,
    "g": 79,
    "b": 187
  },
  "hsl": {
    "h": 228.358,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47362,
    "c": 0.17252,
    "h": 268.6
  },
  "luminance": 0.09937
}

Semantic roles & 50–950 ramp

primary

#354FBB

secondary

#C9BB83

accent

#C249DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #354FBB

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

Preview Lab → · Contrast checker → · Palette generator →