#305AAB#305AAB

#305AAB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.138 H 262.0°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#305AAB
RGB	rgb(48, 90, 171)
HSL	hsl(220, 56%, 43%)
HSV	hsv(220, 72%, 67%)
CMYK	cmyk(71.9%, 47.4%, 0%, 32.9%)
CIE-LAB	lab(39.38, 13.68, -47.73)
CIE-LCH	lch(39.38, 49.66, 286.00°)
OKLab	oklab(48.19% -0.0193 -0.1368)
OKLCH	oklch(48.19% 0.138 262)
XYZ	xyz(12.2232, 10.8797, 39.9760)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305AAB #AB8130

analogous

#3097AB #305AAB #4330AB

triadic

#305AAB #AB305A #5AAB30

tetradic

#305AAB #AB3097 #AB8130 #30AB43

square

#305AAB #AB3097 #AB8130 #30AB43

split-complementary

#305AAB #AB4330 #97AB30

monochromatic

#15284B #23417B #305AAB #4C78CD #7B9CDA

Accessibility & contrast

On white

6.61

#305AAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#305AAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305AAB

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305AAB	#FFFFFF	#000000	##FFFFFF
##305AAB	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F63AE

Deuteranopia (green-blind)

#1257A9

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #305aab;
/* rgb */ color: rgb(48, 90, 171);
/* oklch */ color: oklch(48.2% 0.138 262.0);

Tailwind

colors: {
  custom: {
    50: '#7888c4',
    500: '#305aab',
    950: '#000000',
  },
}

SCSS

$custom: #305aab;
$custom-light: #7888c4;
$custom-dark: #000000;

JSON

{
  "hex": "#305aab",
  "rgb": {
    "r": 48,
    "g": 90,
    "b": 171
  },
  "hsl": {
    "h": 219.512,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48192,
    "c": 0.13818,
    "h": 262
  },
  "luminance": 0.10881
}

Semantic roles & 50–950 ramp

primary

#305AAB

secondary

#C3A874

accent

#AC48DF

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305AAB

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

Preview Lab → · Contrast checker → · Palette generator →