#305ECF#305ECF

#305ECF is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.7% C 0.182 H 264.2°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#305ECF
RGB	rgb(48, 94, 207)
HSL	hsl(223, 62%, 50%)
HSV	hsv(223, 77%, 81%)
CMYK	cmyk(76.8%, 54.6%, 0%, 18.8%)
CIE-LAB	lab(42.97, 24.64, -62.92)
CIE-LCH	lch(42.97, 67.57, 291.38°)
OKLab	oklab(51.72% -0.0184 -0.1814)
OKLCH	oklch(51.72% 0.182 264.2)
XYZ	xyz(16.4801, 13.1369, 60.6865)
Luminance	0.1314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305ECF #CFA130

analogous

#30ADCF #305ECF #5230CF

triadic

#305ECF #CF305E #5ECF30

tetradic

#305ECF #CF30AD #CFA130 #30CF52

square

#305ECF #CF30AD #CFA130 #30CF52

split-complementary

#305ECF #CF5230 #ADCF30

monochromatic

#19316C #24479D #305ECF #6285DB #93ABE6

Accessibility & contrast

On white

5.79

#305ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#305ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305ECF

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305ECF	#FFFFFF	#000000	##FFFFFF
##305ECF	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD3

Deuteranopia (green-blind)

#005ECD

Tritanopia (blue-blind)

#007A8D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #305ecf;
/* rgb */ color: rgb(48, 94, 207);
/* oklch */ color: oklch(51.7% 0.182 264.2);

Tailwind

colors: {
  custom: {
    50: '#808bde',
    500: '#305ecf',
    950: '#000000',
  },
}

SCSS

$custom: #305ecf;
$custom-light: #808bde;
$custom-dark: #000000;

JSON

{
  "hex": "#305ecf",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 207
  },
  "hsl": {
    "h": 222.642,
    "s": 62.353,
    "l": 50
  },
  "oklch": {
    "l": 0.51718,
    "c": 0.18238,
    "h": 264.2
  },
  "luminance": 0.13139
}

Semantic roles & 50–950 ramp

primary

#305ECF

secondary

#D1BC8A

accent

#B642E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #305ECF

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

Preview Lab → · Contrast checker → · Palette generator →