#334FBB#334FBB

#334FBB is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.173 H 268.0°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#334FBB
RGB	rgb(51, 79, 187)
HSL	hsl(228, 57%, 47%)
HSV	hsv(228, 73%, 73%)
CMYK	cmyk(72.7%, 57.8%, 0%, 26.7%)
CIE-LAB	lab(37.63, 27.29, -59.98)
CIE-LCH	lch(37.63, 65.90, 294.47°)
OKLab	oklab(47.26% -0.006 -0.173)
OKLCH	oklch(47.26% 0.173 268)
XYZ	xyz(13.1278, 9.8823, 48.2197)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334FBB #BB9F33

analogous

#3393BB #334FBB #5B33BB

triadic

#334FBB #BB334F #4FBB33

tetradic

#334FBB #BB3393 #BB9F33 #33BB5B

square

#334FBB #BB3393 #BB9F33 #33BB5B

split-complementary

#334FBB #BB5B33 #93BB33

monochromatic

#19265B #263B8B #334FBB #5972D2 #899BDF

Accessibility & contrast

On white

7.05

#334FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#334FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334FBB

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334FBB	#FFFFFF	#000000	##FFFFFF
##334FBB	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBF

Deuteranopia (green-blind)

#0052B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #334fbb;
/* rgb */ color: rgb(51, 79, 187);
/* oklch */ color: oklch(47.3% 0.173 268.0);

Tailwind

colors: {
  custom: {
    50: '#7d80d0',
    500: '#334fbb',
    950: '#000000',
  },
}

SCSS

$custom: #334fbb;
$custom-light: #7d80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#334fbb",
  "rgb": {
    "r": 51,
    "g": 79,
    "b": 187
  },
  "hsl": {
    "h": 227.647,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47264,
    "c": 0.17308,
    "h": 268
  },
  "luminance": 0.09884
}

Semantic roles & 50–950 ramp

primary

#334FBB

secondary

#C9BA81

accent

#C147E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #334FBB

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

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