#305DDB#305DDB

#305DDB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.5% C 0.199 H 265.1°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#305DDB
RGB	rgb(48, 93, 219)
HSL	hsl(224, 70%, 52%)
HSV	hsv(224, 78%, 86%)
CMYK	cmyk(78.1%, 57.5%, 0%, 14.1%)
CIE-LAB	lab(43.61, 29.74, -68.75)
CIE-LCH	lch(43.61, 74.91, 293.40°)
OKLab	oklab(52.48% -0.017 -0.1986)
OKLCH	oklch(52.48% 0.199 265.1)
XYZ	xyz(17.9149, 13.5695, 68.6791)
Luminance	0.1357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DDB #DBAE30

analogous

#30B2DB #305DDB #5930DB

triadic

#305DDB #DB305D #5DDB30

tetradic

#305DDB #DB30B2 #DBAE30 #30DB59

square

#305DDB #DB30B2 #DBAE30 #30DB59

split-complementary

#305DDB #DB5930 #B2DB30

monochromatic

#15307B #1E45AF #305DDB #6486E4 #98AFED

Accessibility & contrast

On white

5.65

#305DDB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#305DDB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DDB

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DDB	#FFFFFF	#000000	##FFFFFF
##305DDB	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDF

Deuteranopia (green-blind)

#005FD9

Tritanopia (blue-blind)

#007D93

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #305ddb;
/* rgb */ color: rgb(48, 93, 219);
/* oklch */ color: oklch(52.5% 0.199 265.1);

Tailwind

colors: {
  custom: {
    50: '#828ae7',
    500: '#305ddb',
    950: '#000000',
  },
}

SCSS

$custom: #305ddb;
$custom-light: #828ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#305ddb",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 219
  },
  "hsl": {
    "h": 224.211,
    "s": 70.37,
    "l": 52.353
  },
  "oklch": {
    "l": 0.52483,
    "c": 0.19931,
    "h": 265.1
  },
  "luminance": 0.13572
}

Semantic roles & 50–950 ramp

primary

#305DDB

secondary

#D9C58E

accent

#BE3BED

background

#F8F8FE

surface

#F0F0FD

border

#CBCBD5

text

#0C0B16

muted

#7D7C84

Preview Lab

Preview with #305DDB

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

Preview Lab → · Contrast checker → · Palette generator →