#305A9D#305A9D

#305A9D is a mid, moderate blue. Relative luminance 0.104; OKLCH L 47.2% C 0.118 H 259.4°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#305A9D
RGB	rgb(48, 90, 157)
HSL	hsl(217, 53%, 40%)
HSV	hsv(217, 69%, 62%)
CMYK	cmyk(69.4%, 42.7%, 0%, 38.4%)
CIE-LAB	lab(38.51, 8.42, -40.80)
CIE-LCH	lch(38.51, 41.66, 281.66°)
OKLab	oklab(47.24% -0.0219 -0.1164)
OKLCH	oklch(47.24% 0.118 259.4)
XYZ	xyz(10.9587, 10.3739, 33.3166)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305A9D #9D7330

analogous

#30909D #305A9D #3D309D

triadic

#305A9D #9D305A #5A9D30

tetradic

#305A9D #9D3090 #9D7330 #309D3D

square

#305A9D #9D3090 #9D7330 #309D3D

split-complementary

#305A9D #9D3D30 #909D30

monochromatic

#13243F #223F6E #305A9D #4476C6 #7399D4

Accessibility & contrast

On white

6.83

#305A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#305A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305A9D

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305A9D	#FFFFFF	#000000	##FFFFFF
##305A9D	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B60A0

Deuteranopia (green-blind)

#29569C

Tritanopia (blue-blind)

#006974

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #305a9d;
/* rgb */ color: rgb(48, 90, 157);
/* oklch */ color: oklch(47.2% 0.118 259.4);

Tailwind

colors: {
  custom: {
    50: '#7588ba',
    500: '#305a9d',
    950: '#000000',
  },
}

SCSS

$custom: #305a9d;
$custom-light: #7588ba;
$custom-dark: #000000;

JSON

{
  "hex": "#305a9d",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 157
  },
  "hsl": {
    "h": 216.881,
    "s": 53.171,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47238,
    "c": 0.11848,
    "h": 259.4
  },
  "luminance": 0.10375
}

Semantic roles & 50–950 ramp

primary

#305A9D

secondary

#BC9E6D

accent

#A54BDD

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #305A9D

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

Preview Lab → · Contrast checker → · Palette generator →