#305EBB#305EBB

#305EBB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.2% C 0.155 H 262.5°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#305EBB
RGB	rgb(48, 94, 187)
HSL	hsl(220, 59%, 46%)
HSV	hsv(220, 74%, 73%)
CMYK	cmyk(74.3%, 49.7%, 0%, 26.7%)
CIE-LAB	lab(41.56, 17.12, -53.61)
CIE-LCH	lch(41.56, 56.28, 287.71°)
OKLab	oklab(50.2% -0.0204 -0.1541)
OKLCH	oklch(50.2% 0.155 262.5)
XYZ	xyz(14.1881, 12.2201, 48.6150)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305EBB #BB8D30

analogous

#30A3BB #305EBB #4730BB

triadic

#305EBB #BB305E #5EBB30

tetradic

#305EBB #BB30A3 #BB8D30 #30BB47

square

#305EBB #BB30A3 #BB8D30 #30BB47

split-complementary

#305EBB #BB4730 #A3BB30

monochromatic

#172D5A #23468A #305EBB #557FD3 #86A3E0

Accessibility & contrast

On white

6.10

#305EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#305EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305EBB

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305EBB	#FFFFFF	#000000	##FFFFFF
##305EBB	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2769BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305ebb;
/* rgb */ color: rgb(48, 94, 187);
/* oklch */ color: oklch(50.2% 0.155 262.5);

Tailwind

colors: {
  custom: {
    50: '#7b8bd0',
    500: '#305ebb',
    950: '#000000',
  },
}

SCSS

$custom: #305ebb;
$custom-light: #7b8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#305ebb",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 187
  },
  "hsl": {
    "h": 220.144,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.50204,
    "c": 0.15542,
    "h": 262.5
  },
  "luminance": 0.12222
}

Semantic roles & 50–950 ramp

primary

#305EBB

secondary

#C9B07D

accent

#AE45E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #305EBB

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

Preview Lab → · Contrast checker → · Palette generator →