#303BA0#303BA0

#303BA0 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.0% C 0.162 H 272.2°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#303BA0
RGB	rgb(48, 59, 160)
HSL	hsl(234, 54%, 41%)
HSV	hsv(234, 70%, 63%)
CMYK	cmyk(70%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(30.14, 30.07, -56.11)
CIE-LCH	lch(30.14, 63.66, 298.19°)
OKLab	oklab(40.98% 0.0064 -0.1619)
OKLCH	oklch(40.98% 0.162 272.2)
XYZ	xyz(9.1259, 6.2935, 33.9847)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303BA0 #A09530

analogous

#3073A0 #303BA0 #5D30A0

triadic

#303BA0 #A0303B #3BA030

tetradic

#303BA0 #A03073 #A09530 #30A05D

square

#303BA0 #A03073 #A09530 #30A05D

split-complementary

#303BA0 #A05D30 #73A030

monochromatic

#141842 #222A71 #303BA0 #4653C7 #757ED6

Accessibility & contrast

On white

9.30

#303BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#303BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303BA0

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303BA0	#FFFFFF	#000000	##FFFFFF
##303BA0	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#00429E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #303ba0;
/* rgb */ color: rgb(48, 59, 160);
/* oklch */ color: oklch(41.0% 0.162 272.2);

Tailwind

colors: {
  custom: {
    50: '#7771bd',
    500: '#303ba0',
    950: '#000000',
  },
}

SCSS

$custom: #303ba0;
$custom-light: #7771bd;
$custom-dark: #000000;

JSON

{
  "hex": "#303ba0",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 234.107,
    "s": 53.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40976,
    "c": 0.16204,
    "h": 272.2
  },
  "luminance": 0.06294
}

Semantic roles & 50–950 ramp

primary

#303BA0

secondary

#BEB66E

accent

#CF4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #303BA0

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

Preview Lab → · Contrast checker → · Palette generator →