#304D83#304D83

#304D83 is a dark, moderate blue. Relative luminance 0.076; OKLCH L 42.5% C 0.097 H 261.8°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#304D83
RGB	rgb(48, 77, 131)
HSL	hsl(219, 46%, 35%)
HSV	hsv(219, 63%, 51%)
CMYK	cmyk(63.4%, 41.2%, 0%, 48.6%)
CIE-LAB	lab(33.08, 7.28, -33.64)
CIE-LCH	lch(33.08, 34.42, 282.21°)
OKLab	oklab(42.54% -0.0138 -0.0956)
OKLCH	oklch(42.54% 0.097 261.8)
XYZ	xyz(7.9681, 7.5741, 22.5104)
Luminance	0.0757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304D83 #836630

analogous

#307783 #304D83 #3C3083

triadic

#304D83 #83304D #4D8330

tetradic

#304D83 #833077 #836630 #30833C

square

#304D83 #833077 #836630 #30833C

split-complementary

#304D83 #833C30 #778330

monochromatic

#0F1829 #203356 #304D83 #4067B0 #6688C7

Accessibility & contrast

On white

8.35

#304D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#304D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304D83

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304D83	#FFFFFF	#000000	##FFFFFF
##304D83	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355285

Deuteranopia (green-blind)

#2A4A82

Tritanopia (blue-blind)

#005961

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #304d83;
/* rgb */ color: rgb(48, 77, 131);
/* oklch */ color: oklch(42.5% 0.097 261.8);

Tailwind

colors: {
  custom: {
    50: '#707ea7',
    500: '#304d83',
    950: '#000000',
  },
}

SCSS

$custom: #304d83;
$custom-light: #707ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#304d83",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 131
  },
  "hsl": {
    "h": 219.036,
    "s": 46.369,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42539,
    "c": 0.09662,
    "h": 261.8
  },
  "luminance": 0.07575
}

Semantic roles & 50–950 ramp

primary

#304D83

secondary

#AE9361

accent

#A852D6

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #304D83

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

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