#334F9B#334F9B

#334F9B is a dark, vivid blue. Relative luminance 0.087; OKLCH L 44.8% C 0.128 H 266.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#334F9B
RGB	rgb(51, 79, 155)
HSL	hsl(224, 50%, 40%)
HSV	hsv(224, 67%, 61%)
CMYK	cmyk(67.1%, 49%, 0%, 39.2%)
CIE-LAB	lab(35.32, 15.41, -44.68)
CIE-LCH	lch(35.32, 47.27, 289.03°)
OKLab	oklab(44.79% -0.0086 -0.128)
OKLCH	oklch(44.79% 0.128 266.1)
XYZ	xyz(10.0756, 8.6614, 32.1448)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334F9B #9B7F33

analogous

#33839B #334F9B #4B339B

triadic

#334F9B #9B334F #4F9B33

tetradic

#334F9B #9B3383 #9B7F33 #339B4B

square

#334F9B #9B3383 #9B7F33 #339B4B

split-complementary

#334F9B #9B4B33 #839B33

monochromatic

#15203F #24386D #334F9B #4869C3 #768FD2

Accessibility & contrast

On white

7.69

#334F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#334F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334F9B

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334F9B	#FFFFFF	#000000	##FFFFFF
##334F9B	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27589E

Deuteranopia (green-blind)

#0F4F99

Tritanopia (blue-blind)

#00616D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #334f9b;
/* rgb */ color: rgb(51, 79, 155);
/* oklch */ color: oklch(44.8% 0.128 266.1);

Tailwind

colors: {
  custom: {
    50: '#767fb9',
    500: '#334f9b',
    950: '#000000',
  },
}

SCSS

$custom: #334f9b;
$custom-light: #767fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#334f9b",
  "rgb": {
    "r": 51,
    "g": 79,
    "b": 155
  },
  "hsl": {
    "h": 223.846,
    "s": 50.485,
    "l": 40.392
  },
  "oklch": {
    "l": 0.44791,
    "c": 0.12827,
    "h": 266.1
  },
  "luminance": 0.08662
}

Semantic roles & 50–950 ramp

primary

#334F9B

secondary

#BAA66F

accent

#B44EDA

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #334F9B

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

Preview Lab → · Contrast checker → · Palette generator →