#305AA5#305AA5

#305AA5 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 47.8% C 0.130 H 261.0°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#305AA5
RGB	rgb(48, 90, 165)
HSL	hsl(218, 55%, 42%)
HSV	hsv(218, 71%, 65%)
CMYK	cmyk(70.9%, 45.5%, 0%, 35.3%)
CIE-LAB	lab(39.00, 11.42, -44.79)
CIE-LCH	lch(39.00, 46.22, 284.31°)
OKLab	oklab(47.78% -0.0203 -0.1282)
OKLCH	oklch(47.78% 0.13 261)
XYZ	xyz(11.6642, 10.6561, 37.0321)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AA5 #A57B30

analogous

#3095A5 #305AA5 #4130A5

triadic

#305AA5 #A5305A #5AA530

tetradic

#305AA5 #A53095 #A57B30 #30A541

square

#305AA5 #A53095 #A57B30 #30A541

split-complementary

#305AA5 #A54130 #95A530

monochromatic

#142646 #224076 #305AA5 #4877CA #789AD8

Accessibility & contrast

On white

6.71

#305AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#305AA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AA5

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AA5	#FFFFFF	#000000	##FFFFFF
##305AA5	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3562A8

Deuteranopia (green-blind)

#1E57A3

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #305aa5;
/* rgb */ color: rgb(48, 90, 165);
/* oklch */ color: oklch(47.8% 0.130 261.0);

Tailwind

colors: {
  custom: {
    50: '#7788c0',
    500: '#305aa5',
    950: '#000000',
  },
}

SCSS

$custom: #305aa5;
$custom-light: #7788c0;
$custom-dark: #000000;

JSON

{
  "hex": "#305aa5",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 165
  },
  "hsl": {
    "h": 218.462,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47775,
    "c": 0.12977,
    "h": 261
  },
  "luminance": 0.10657
}

Semantic roles & 50–950 ramp

primary

#305AA5

secondary

#C0A471

accent

#A94ADE

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #305AA5

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

Preview Lab → · Contrast checker → · Palette generator →